Bitmap

Great Reads

Count Number of Unique Colors in an Image

by #realJSOP

Determine the number of unique colors in an image

Displaying Bitmaps Efficiently on Android Apps

by Isaac RF

To create visually engaging apps, displaying images is a must. Learn to display Bitmaps Efficiently on your Android apps, without giving away performance. The post Displaying Bitmaps Efficiently on Android apps appeared first on Isaac RF.

Programming Nostalgia: revisiting Mike Wiering’s Mario Game Written in Pascal

by ToughDev

Revisiting Mario Game Written in Pascal

FITS to image and image transparency

by V.

Convert FITS file to known image formats and use those images for a "zooming" functionality (image transparency)

Latest Articles

Image Resizer: Monitor Folders for Incoming Images and Resize or Convert Formats Automatically

by honey the codewitch

Image Resizer automatically resizes images you drop in a monitored folder based on criteria you give it. It can also change image formats.

Programming Nostalgia: revisiting Mike Wiering’s Mario Game Written in Pascal

by ToughDev

Revisiting Mario Game Written in Pascal

Very Fast Image Blur in C# using Direct Bit Manipulation in Pure .NET

by pdoxtader

Very fast image processing without use of unsafe code

GFX Part 4: The ILI9341 Display Driver and JPEG Support

by honey the codewitch

Use an ILI9341 display efficiently from an ESP32 without the Arduino framework. Load JPEGs.

All Articles

top

Bitmap

Image Resizer: Monitor Folders for Incoming Images and Resize or Convert Formats Automatically

9 Feb 2024 by honey the codewitch

Image Resizer automatically resizes images you drop in a monitored folder based on criteria you give it. It can also change image formats.

Bitmap

image

Programming Nostalgia: revisiting Mike Wiering’s Mario Game Written in Pascal

11 May 2023 by ToughDev

Revisiting Mario Game Written in Pascal

Very Fast Image Blur in C# using Direct Bit Manipulation in Pure .NET

17 Apr 2023 by pdoxtader

Very fast image processing without use of unsafe code

How to speed up image resizing in C# .NET

1 Feb 2023 by Graeme_Grant

See if this helps: Image Resizing - outperform GDI+ | CodeProject[^] UPDATE #1 Try: GitHub - mono/SkiaSharp: SkiaSharp is a cross-platform 2D graphics API for .NET platforms based on Google's Skia Graphics Library. It provides a comprehensive 2D...

How to speed up image resizing in C# .NET

31 Jan 2023 by w14243

E.g. Resize an 8000x8000 big size image to 500x500 small size image, below C# .NET methods were tested: 1. Bitmap smallimg = new Bitmap(bigimg, 500, 500); 2. Bitmap smallimg = bigimg.GetThumbnailImage(500, 500, ...); 3. Bitmap smallimg = new...

You are given two integers N and K, and you need to find two positive integers X and Y

20 Nov 2022 by Ronny ronny

you are given two integers N and K, and you need to find two positive integers X and Y such that: X

bitwise

Bitmap

You are given two integers N and K, and you need to find two positive integers X and Y

20 Nov 2022 by OriginalGriff

While we are more than willing to help those that are stuck, that doesn't mean that we are here to do it all for you! We can't do all the work, you are either getting paid for this, or it's part of your grades and it wouldn't be at all fair for...

bitwise

Bitmap

Why do we need to lock this data by bitmap.lockbits method

20 May 2022 by Southmountain

I am testing a demo at this link . I know what this LockBits method does, but not 100% sure why we need to use it. is there any possibility that other processes can modify this bmpData ? I copy the source code here for your convenience: ...

Bitmap

Why do we need to lock this data by bitmap.lockbits method

20 May 2022 by Richard MacCutchan

See the Remarks section at Bitmap.LockBits Method (System.Drawing) | Microsoft Docs[^].

Bitmap

GFX Part 4: The ILI9341 Display Driver and JPEG Support

4 May 2021 by honey the codewitch

Use an ILI9341 display efficiently from an ESP32 without the Arduino framework. Load JPEGs.

GFX Part 2: Device Independent Bitmaps

17 Apr 2021 by honey the codewitch

GFX IoT graphics library part 2 - device independent bitmaps

How to Set a New or Change / Exchange / Replace the Image of a Toolbar Button

21 Feb 2021 by Steffen Ploetz

My best practice approach to change the image of a toolbar button

Approach to Paste a Bitmap into an Icon Image on ReactOS (and Consequently on Windows XP and Newer Versions, using Win32 API)

27 Dec 2020 by Steffen Ploetz

Step-by-step instructions and source code snippets for inserting a bitmap (or a section of it) into an icon image.

How to change width without cropping image in VB.NET?

9 Nov 2020 by OriginalGriff

Tell me this: if I have a cubic box of tomatoes and I sit on it - lowering it's height by half - are the tomatoes inside still all round and perfect? Of course not: I have reduced the volume of the box significantly, and squashed the fruits...

barcode

Bitmap

How to change width without cropping image in VB.NET?

9 Nov 2020 by Member 14548583

I want to decrease width of image without losing its quality and without cropping it. When i am trying to decrease the width the image it becomes blurred. How can i resolve this? This is what i have tried so far. What I have tried: Dim...

barcode

Bitmap

How to create a zip file for images converted from PDF to PNG

1 Jun 2020 by Maciej Los

Quote: ...if the PDF has multiple pages my application only coverts and save them individually (one at a time) in which I have to repeatedly click the Save button before the next page from the PDF is saved, etc. Do you know what WYWIWYG acronym...

WinForms

Bitmap

PDF

How to create a zip file for images converted from PDF to PNG

1 Jun 2020 by Member 14766911

I want to save files that are converted from a PDF to a PNG in a zip file. So far, I am able to convert a single PDF document into a PNG format, but if the PDF has multiple pages my application only coverts and save them individually (one at a...

WinForms

Bitmap

PDF

Bitmap increases tif size after reaching a certain point

20 Apr 2020 by OriginalGriff

We can't really tell, without running your code on your data - and we don't have access to either! So, it's going to be up to you. Fortunately, you have a tool available to you which will help you find out what is going on: the debugger. If you...

ASP.NET5

Bitmap

Bitmap increases tif size after reaching a certain point

20 Apr 2020 by AskalotLearnalot

I am using Bitmap to water mark tif image files after it reach file number 440 the image size increases which results in a small text watermark. My method is designed to process large amount of files, it also checks if the image is colored or not...

ASP.NET5

Bitmap

Bitmap program closes/crashes

6 Feb 2020 by phil.o

If you do not want it to close automatically, you can addConsole.WriteLine("Press a key..."); Console.ReadKey(); at the end of the Main method.

image-processing

Bitmap

Bitmap program closes/crashes

6 Feb 2020 by Member 14589606

I try to run the code, it doesnt tell the format but closes immediately, any ideas? The path is correct as it some times flashes the format and then closes using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using...

image-processing

Bitmap

How to detect whether an image is black

5 Feb 2020 by Member 14589606

How do I detect if an image is black What I have tried: The image which I want to detect is completely black

Bitmap

image

How to detect whether an image is black

5 Feb 2020 by OriginalGriff

Look at the pixels (this may help: Bitmap.GetPixel(Int32, Int32) Method (System.Drawing) | Microsoft Docs[^] ) and compare them to Color.Black What did you expect us to tell you to do?

Bitmap

image

Image Canvas Border Editor

18 Jan 2020 by Marijan Nikic

Small tool for adding borders to image for canvas printing

Getting “insufficient memory to continue the execution of the program.” while saving the tiff images after rotation.

1 Jan 2020 by Richard MacCutchan

The error is quite clear, you have run out of memory. You will need to modify your code so that it does not keep all the pages in memory. You could try saving each page as you process it so that it reduces the amount of memory in use at any time. Also, I am not sure why your Save method writes...

Getting “insufficient memory to continue the execution of the program.” while saving the tiff images after rotation.

1 Jan 2020 by Member 13187373

I have 10MB+ Tiff files having 50 pages, and I want to perform rotation of all the pages by 90 degree at one click only, but after performing the rotation operations for each frames in foreach loop and when it comes to the Save(Encoder encoder) then here, encoder.Save(temporaryStream); //...

How can I get a video sequence from images in C++?

4 Jun 2019 by Member 14478761

I got the solution. I placed the code in the wrong place and misinterpret the error message. Thank you for your help.

C++

Visual-Studio

Bitmap

How can I get a video sequence from images in C++?

4 Jun 2019 by Member 14478761

Hello, I would like to create an avi-file from a sequence of images. The images are stored as "cppBITMAP2.bmp" (during the loop the image gets updated). In this loop I want to create a video from these images. What I have tried: I found this: A simple interface to the Video for Windows API...

C++

Visual-Studio

Bitmap

How can I get a video sequence from images in C++?

3 Jun 2019 by KarstenK

This isnt to hard, because AVI is a container format and you only need to init it and and some frames You may find some information in the article A class to easily generate AVI video with OpenGL and Video for Windows. Tip: the first pixel of the first frame (so the top-left) is setting the...

C++

Visual-Studio

Bitmap

C# is there a way to minimize a BYTE size of image before sending to server using sokcet

28 May 2019 by AntonioLeonardo

The imagem compression follow another objects and features that different of trivial files; image compreession has properties to equalize the compression. Like code bellow, the compression act on Quality property: static byte[] CompressByImageAlg(int jpegQuality, byte[] data) {...

Bitmap

C# is there a way to minimize a BYTE size of image before sending to server using sokcet

28 May 2019 by MinYoung Lee

I've been trying to develop Remote Desktop Program in C# and I want to make the BYTE size of my Image smaller. Here is my attempt below so far. // int w = Screen.PrimaryScreen.Bounds.Width; int h = Screen.PrimaryScreen.Bounds.Height; ...

Bitmap

What's the best method for rendering a decoded frame?

18 Apr 2019 by ilostmyid2

In the following code, I need to know whether I used a proper method for rendering frames obtained after decoding and rescaling. Besides, I get exception. I don't know what the exception is, since I see red x instead of images after some time. using System; using System.Collections.Generic;...

ffmpeg

Bitmap

What's the best method for rendering a decoded frame?

18 Apr 2019 by Fueled By Decaff

You are trying to perform UI(User Interface) operations on a thread that is not the UI thread. Either create and display the Bitmap in the backgroundWorker1_ProgressChanged method or use this.Invoke to execute code on the Form UI thread and generate the Bitmap and display it in the method...

ffmpeg

Bitmap

Where can I commission $$ a small winapi programming job?

18 Jan 2019 by RickZeeland

Here are some sites: https://www.slant.co/improve/topics/10369/~platforms-where-i-can-recruit-freelance-teams[^] https://www.slant.co/improve/topics/11977/~sites-to-find-post-a-job[^]

WinAPI

Bitmap

How to reach specific location in C#?

19 Dec 2018 by Member 13664349

Hi, I have a scanned image which contains some multiple-choice questions. So, first of all how could I calculate the average color for most pixels inside a specific circle (I already know how to get the color of one individual pixel I only need help with the algorithm) Please Note I already...

Bitmap

image

How to crop an image in an appropriate way, C#?

18 Dec 2018 by User 11060979

This is not an easy field and you Need to dive in deep into the theory. I would suggest you this as a start: Redirect Notice[^] Please note the above article is only a start and it descibes the "most" complex case. In case you have not a photography, but a scanned document I suggest to read...

How to crop an image in an appropriate way, C#?

18 Dec 2018 by Member 13664349

Hi, I am working on a program which is able to get the answers from a multiple-choices questions just like SAT. So in order to determine which Answer was selected I thought about getting the color of specific pixels (If pixel color is nearly black that menas this choice is selected...) But...

How many degrees should I rotate an image to correct it?

18 Dec 2018 by OriginalGriff

Repost, again. When you asked this question yesterday: Any ideas for scanning multiple choices answers?[^] I told you that the answer hadn't changed since the day before: How to crop an image in an appropriate way, C#?[^] I repeat: the answer doesn't change just because you don't like it.

C#7.0

Bitmap

image

Any ideas for scanning multiple choices answers?

17 Dec 2018 by OriginalGriff

And how does this differ in any material way from your last question: How to crop an image in an appropriate way, C#?[^] The solution you have been given does not change just because you don't like the answer!

C#7.0

Bitmap

image

How to crop an image in an appropriate way, C#?

17 Dec 2018 by RickZeeland

See these CodeProject articles: Cropping Images[^] Image Rotation in .NET[^] And here's a WPF version: Rotating and cropping an image in WPF - Pete Brown's 10rem.net[^] And here's a cross platform .NET Core library: GitHub - SixLabors/ImageSharp: A cross-platform library for the processing of...

Bitmap method clone(bitmap, format) will not compile

1 Nov 2018 by MartinXLord

I have now tested this with Visual Studio 2017 Compiles OK - no error message

Bitmap

Bitmap method clone(bitmap, format) will not compile

1 Nov 2018 by MartinXLord

clone(Bitmap,format) Compiler say there is no overload that takes 2 arguments Microsoft docs describes the method ( with 2 arguments) for net frameworks 1.2 to 4.7.2 (Bitmap.Clone Method (System.Drawing) | Microsoft Docs[^]) I am using framework 4.5 and visual studio 2012 Express I have...

Bitmap

Bitmap method clone(bitmap, format) will not compile

31 Oct 2018 by F-ES Sitecore

You're missing some parenthesis. newImage = ((Bitmap)image).Clone(sRec,PixelFormat.Format16bppArgb1555); In your original code "(Bitmap)image.Clone" You are calling the Clone method on whatever type image is, you're not calling it on image cast to Bitmap. By adding the parenthesis you are...

Bitmap

Bitmap method clone(bitmap, format) will not compile

31 Oct 2018 by MartinXLord

Edit the source line is:- newImage = (Bitmap)image.Clone(sRec,PixelFormat.Format16bppArgb1555); newImage is defined in the class Form1 : Form by:- "Bitmap newImage = null;" The compiler message was:- 'Error: No overload for method "Clone" takes 2 arguments'

Bitmap

Copy a GL Texture to Another GL Texture or to a GL Pixel Buffer and from a GL Pixel Buffer

13 Oct 2018 by Steffen Ploetz

How to use GL's pixel buffer object (PBO) to copy one texture to another

How do I print labels on a glcontrol in opengl.net without using GLUT

11 Sep 2018 by Member 13981298

Need to print labels on a GlControl box for a graph. This can be done easily with Glut. However, OpenGL.Net does not seem to support GLUT. What I have tried: Tried writing the string on a bitmap and then print it on the Glcontrol but it prints some garbage value. The application is in WinForm....

CMFCToolbar: use Customized bitmap(HBITMAP ) runtime

9 Sep 2018 by jung-kreidler

Probably a little bit late, but it might help others. No, there's no need for another toolbar. When creating a toolbar the bitmap is loaded to a CMFCToolBar internal object, which can be reset by CleanUpLockedImages. After this another bitmap can be loaded with a call to LoadBitmap (same as...

C++

MFC

Bitmap

CMFCToolbar: use Customized bitmap(HBITMAP ) runtime

7 Sep 2018 by iDebD

//CMFCToolBar m_wndToolBar;if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP | CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) || !m_wndToolBar.LoadToolBar(theApp.m_bHiColorIcons ? IDR_MAINFRAME_256 : IDR_MAINFRAME)) { TRACE0("Failed...

C++

MFC

Bitmap

How do I save vertical gradient as bitmap

3 Sep 2018 by Shahzad Naseer

I want to save Gradient object as Cbitmap. The Function MakeDiagnolGradientBitmap() saves Diagnol Gradient. I Simply want to save Vertical Gradient. void CButtonST::MakeDiagnolGradientBitmap() { CPaintDC dc(this); CRect rect; GetClientRect(&rect); int r1 = 245, g1 = 245, b1 = 245; int...

C++

Bitmap

How do I save vertical gradient as bitmap

3 Sep 2018 by Richard MacCutchan

See Saving CBitmap as a .bmp file in MFC[^]

C++

Bitmap

Draw newton's fractal in F#

2 May 2018 by Member 13795231

Hello, I am facing a problem with drawing Newton's fractal for f(x) = x^3 - 1 using F# The problem is that my program seems to draw only the down right 1/4 of the fractal and nothing else. Since the actual drawn area is correct, I take it as the problem might be with the bitmap representation on...

Bitmap

Java.lang.runtimeexception: failed to read bitmap

8 Mar 2018 by Member 13376650

I am trying to take a photo from the phone's camera, then pass it to tesseract engine and write the result on a text view by the code you can see in the following. MainActivity: package com.example.arbazalam.myapplication; import android.Manifest; import android.content.Intent; import...

Binary data image to black and white image file C#

4 Jan 2018 by Amedora Ahmed

I am reading binary data image from a serial port device how can i write it to a black and white image file. The project is a bill counting machine which solution. the device scans images of serial number of bill counted including the data counter Below is the data returned from the device as...

How do I determine which icon set to use for my application?

31 Dec 2017 by kkdxghlctlcxxtidyuum

Hello, After installing a new distribution of GNU/Linux, I found that various applications were using a different icon set for their MenuStrips and ToolBars. My old distribution used the GTK+ icon set (Debian), my new distribution uses the Mint-X icon set (Linux Mint). My question is: how does...

How do I determine which icon set to use for my application?

31 Dec 2017 by Richard MacCutchan

See How to Set the Look and Feel (The Java™ Tutorials - Creating a GUI With JFC/Swing - Modifying the Look and Feel)[^]

How to set DIB as foreground of window?

4 Dec 2017 by Member 13291388

I create a device independent bitmap on a layer window in c++, and this bitmap shows above window correctly. But the problem is that it is hidden by child of window. How to set DIB as top display even we create many window on the same time? Do have any command for setup bitmap as top show on all...

C++

Bitmap

How to set DIB as foreground of window?

4 Dec 2017 by KarstenK

You must draw that bitmap in your top-most window. When you open a new sub window check whether it is top most and draw it. For convinience it is best to use a global pointer to get access to your bitmap. Creating a lot of windows isnt a good idea because it confuses the users and I see it as...

C++

Bitmap

C++ Scanline functionality in embarcadero's builder

3 Dec 2017 by completeknowitall

Um.. I thought I understood scan line... but when I step through the code, the source pointer remains empty and nothng gets transferred. I you have any advice, I'm listening. this is the core of my code, I'm hoping to do stuff to the pixels between reading and writing, but this part doesn't...

C++

Bitmap

C# : DIB byte array to bitmap

13 Sep 2017 by Member 13373000

I am working with COM Interface of a software, OMICRON MPD 600 to be particular. I would like to take a screenshot using the provided methods however it returns the image as DIB populated inside byte array. How can use this byte array to save this screenshot as an image. I would prefer DIB to...

C#7.0

Bitmap

C# : DIB byte array to bitmap

13 Sep 2017 by Graeme_Grant

There is an article right here on Code Project that will answer this for you: DIB to System.Bitmap[^]

C#7.0

Bitmap

C# is there a way to minimize a BYTE size of image before sending to server using sokcet

29 May 2017 by CPallini

As already noted you usually can't gain much trying to compress a JPEG image, which is alreay compressed. In your code you changed the image size, making it smaller. If it is acceptable to make it even more smaller, then you may save some memory.

Bitmap

C# is there a way to minimize a BYTE size of image before sending to server using sokcet

29 May 2017 by OriginalGriff

Not really: JPEG files are already compressed, and further compression often makes them larger, not smaller. You're already using ZIP compression, but it's unlikely to produce significant gains on a JPEG file anyway. If you get an extra 10% then you were doing well. But...you do realise that...

Bitmap

How do I set bitmap on xamarin imageview from a decoded byte bitmap from a windows server, without half loading images/flickering

27 May 2017 by tech-helper

Have you tried turning it off and on again?

Get one gif frame at the time.

4 May 2017 by Toni_s

Hi all. I have a question about how to play animation without to use too much memory. I want to load in every Timer Tick only one frame directly from the disk, without to load all frames into memory in a variable. I have make one function for this, but if i called it slows down in every frame a...

Setalphabitmap not working

16 Jan 2017 by EsakkiRaja

Hi all,I am trying to draw a line over the live video streaming in direct show application. Am successfully drawing a line but if I continuously want to create a line by calling the below function, i got an error E_OUTOFMEMORY from the SetAlphaBitmap(). Am calling drawlineOverlay() function...

C++

Bitmap

directshow

Setalphabitmap not working

16 Jan 2017 by KarstenK

Create and populate the bitmap and the other stuff once at program start. These operations are "expensive" so do them as less as possible.//Gobal bitmapBITMAP bm = {0};// init with zerosvoid drawlineOverlay(HWND m_hwndApp){ //run code once if( bm.bmWidth == 0 ) { // set...

C++

Bitmap

directshow

How to draw or write text by hand on image selected from gallery in android

28 Dec 2016 by learnasucan

Actually I have written a code to select image from gallery,but I dont know how to draw or write a text by hand on it.and Edited image should be saved separately in sdcard.Basically I have to make basic paint app where canvas will be my selected image,and my touch is input to draw a circle or...

How to use bitmap in C#

24 Nov 2016 by JeSuisMathieuNault

I am trying to use Bitmap but I get instant errortryingusing System.Drawing.Bitmapand keep getting Error CS0246 The type or namespace name 'Bitmap' could not be found (are you missing a using directive or an assembly reference?) BitMap D:\Data\3M Machines\My Machines\Programmation...

Bitmap

How to use bitmap in C#

24 Nov 2016 by OriginalGriff

You don't add a using statement for individual classes, just the namespace they are in:using System.Drawing;You can then use the class:Bitmap bm = (Bitmap) Bitmap.FromFile(@"D:\Temp\MyImage.bmp");

Bitmap

How to use bitmap in C#

24 Nov 2016 by F-ES Sitecore

You only include the namespace in the "using", not the class nameusing System.DrawingIf you're struggling to even create a class you're really going to struggle doing anything more advanced. I'd get a book on c# and start learning the basics before moving on to anything else.

Bitmap

Screen Recorder

4 Oct 2016 by Arun Chandrasekhara Pillai

Create a screen recorder using C#

How to set imglocation using openfildilog

28 Sep 2016 by Member 12766129

I have a form with OpenFileDialog for selecting image and showing it in pictureBox. Until the form is open the user can open and then save the opened image as many times as he wants.But when he secont time open openfiledialog the picture show but the both image show in same location,I want the...

Bitmap

Displaying Bitmaps Efficiently on Android Apps

24 Aug 2016 by Isaac RF

Copy save bitmap image to file C++

20 Aug 2016 by binaryoffset

Hello. I am trying to copy and save the contents of a Bitmap class image to a *.bmp file but currently receive Unhandled Exceptions during run-time of the console program. I would be grateful to learn where the error lies and how to fix this program. Thank you.Below is the main part of the...

C++

Bitmap

image

Copy save bitmap image to file C++

20 Aug 2016 by Afzaal Ahmad Zeeshan

This generic exception is the worst exception that one can get while working with graphics objects. It just simply doesn't provide anything at all. Quote:An unhandled exception of type 'System.Runtime.InteropServices.ExternalException' occurred in System.Drawing.dll Additional information: A...

C++

Bitmap

image

Copy save bitmap image to file C++

20 Aug 2016 by KarstenK

You dont respect the file format of bmp files. At the beginning is written the bitmap header, than optional some palette (mapping) data and than the pixels. You easily can fetch some information in the wikipedia article about bmp file format.The legendary article CxImage handles the bitmap...

C++

Bitmap

image

Bitmap on button in dynamic library

13 Aug 2016 by Member 12684118

HI,codeprojectersi have a question how would i put a bitmap on my button in dynamic library the bitmaps needs to be in /themes/ for who want a costum buttonWhat I have tried:I tried loadbitmap and etc but it didnt work

C++

Win32

Bitmap

Bitmap on button in dynamic library

13 Aug 2016 by Member 12684118

Do you have any example on how to do it and display the image on the button??

C++

Win32

Bitmap

Bitmap on button in dynamic library

13 Aug 2016 by Jochen Arndt

If LoadBitmap() fails call GetLastError() to know the reason for the error.Loading a bitmap from file (especially by a dynamic library) is a bad idea because you have to hard code the path to the file. For this reason I expect the error code to be 2 (ERROR_FILE_NOT_FOUND).A better...

C++

Win32

Bitmap

Bitmap image overlay produces distorted result

5 Aug 2016 by User 6976447

I am using a custom class to write an image onto another image of bigger size.I am using a custom class to write an image onto another image of bigger size.doc - Google Drive[^]public class BitmapLockerTest{ private static string path = @"locker.png"; public static void...

debugging

image-processing

Bitmap

How can I convert a bitmap to a 1D byte array and vice versa in C#?

11 Jul 2016 by User 6976447

I wrote the following methods, public static byte[] BitmapToByteArray(Bitmap image) { byte[] returns = null; if (image.PixelFormat == PixelFormat.Format8bppIndexed) { BitmapData bitmapData =...

How can I convert a bitmap to a 2D array of integers and vice versa in C#?

10 Jul 2016 by User 6976447

I want to convert a Bitmap image into a 2D array of integers and vice versa.I have written the given code.And, this is my driver program:private void forwardFftButton_Click(object sender, EventArgs e) { Bitmap grayscale = (Bitmap)...

Bitmap

How can I convert a bitmap to a 2D array of integers and vice versa in C#?

10 Jul 2016 by Patrice T

You should learn to use the debugger as soon as possible. Rather than guessing what your code is doing, It is time to see your code executing and ensuring that it does what you expect.The debugger allow you to follow the execution line by line, inspect variables and you will see that there...

Bitmap

How can I convert a 1D byte array of a bitmap into a 2D byte array?

6 Jul 2016 by User 6976447

I have written a test program and loaded a PNG image into it,https://dotnetfiddle.net/XHwp7oPixel format = 32 bit colorResolution of the Bitmap,Width = 512 pixelsHeight = 512 pixelsStride of the Bitmap = 2048 pixelsOffset or Padding = (Stride - Width) = (2048 - 512) = 1336...

image-processing

Bitmap

How can I convert a 1D byte array of a bitmap into a 2D byte array?

6 Jul 2016 by Midi_Mick

Firstly, there are a few things to note in your report of the bitmap attributes: 1. Stride is usually reported in bytes, not pixels. 2. Each pixel is 4 bytes (32 bits). 3. This means that your offset or padding will be 0 (2048 bytes - 512*4 bytes).Each row of your bitmap...

image-processing

Bitmap

How to crop bitmap image in WPF?

15 May 2016 by oronsultan

in my wpf application, the user can upload an image. Now, when the image is not centered and the background is transparent, i want to crop the image. is it posiible?What I have tried:.......................................................................................

WPF

Bitmap

Change wallpaper with C# or remove the wallpaper for good

30 Apr 2016 by ByeByeByeByeBye

how would I change the wallpaper with C# back to a known path of a bitmap or remove the wallpaper for good? Is there any command for it. A SendKeys Combo would be fine.Can't access my wallpaper settings manually any longer, it's been greyed out all options and I have a strange bitcoin...

Change wallpaper with C# or remove the wallpaper for good

30 Apr 2016 by Richard MacCutchan