How to Get Pixel Value C# WP7 and windows mobile 6

Question

4.50/5 (2 votes)

See more:

, +

Helo all, I need help here code c# for windows phone.
just with C# on Windows Phone 7, I can't get value of pixel in image. I was creat code for get pixel value on Windows mobile 6 using VS2008 c# and still work but very slow, here my code.

private void button2_Click(object sender, EventArgs e)
        {
            Bitmap Ori = new Bitmap(pictureBox1.Image);
            int X = Ori.Width;
            int Y = Ori.Height;
            string pesan = "Y :"+ Convert.ToString(Y)+ "X :"+  Convert.ToString(X);
            MessageBox.Show(pesan);
            for (int i = 0; i &lt; X; i++)
            {
                for (int k = 0; k &lt; Y; k++)
                {
                    Color pix = Ori.GetPixel(i,k);
                    byte XY = (byte)((pix.R + pix.G + pix.B) / 3);
                    pix=Color.FromArgb(XY,XY,XY);
                    Ori.SetPixel(i,k, pix);
                }
            }
            pictureBox1.Image=new Bitmap(Ori);
            
        }

this code I am copy to vs 2010 exp for windows phone and not work.
anybody know, please give me solution
1. fast getpixel on windows mobile 6 with visual studio 2008 c#
2. fast getpixel on windows phone 7 with visual studio 2010 c#

thanks before & sorry for may bad english

[edit]Code block added - OriginalGriff[/edit]

Posted 14-Jun-11 21:24pm

bagus bujangga

Updated 14-Jun-11 21:54pm

OriginalGriff

v2

Add a Solution

2 solutions

Solution 2

Never use GetPixel/SetPixel (unless you need just 1-5 of them :-)) — it's too slow!

Instead, use System.Drawing.Bitmap.LockBits methods. See:
http://msdn.microsoft.com/en-us/library/5ey6h79d.aspx[^] (see a code sample here),
http://msdn.microsoft.com/en-us/library/039882h3.aspx[^],
http://msdn.microsoft.com/en-us/library/system.drawing.bitmap.aspx[^].

—SA

Posted 15-Jun-11 13:16pm

Sergey Alexandrovich Kryukov

Comments

bagus bujangga 15-Jun-11 20:33pm

its not work, The type or namespace name 'BitmapData' could not be found (are you missing a using directive or an assembly reference?)

my be assembly reference not loaded, how to load reference??
there is no System.Drawing. while i tray to add in reference.
thanks

Sergey Alexandrovich Kryukov 17-Jun-11 22:53pm

I don't understand it. If there is no System.Drawing, where Bitmap is declared? In your code you show Bitmap and PictureBox anyway. Look what assembly is required and add it.
--SA

Sergey Alexandrovich Kryukov 17-Jun-11 22:57pm

Oh! I just noticed your comment to the Dave's answer: you're not adding references but you simple write "using". That's not it!
Please see my comment on adding references.
--SA

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Dave Kreskowiak · Accepted Answer · 2011-06-15T04:36:00

Solution 1

Image Processing for Dummies with C# and GDI+ Part 1 - Per Pixel Filters[^]

Posted 15-Jun-11 4:36am

Dave Kreskowiak

Comments

Sergey Alexandrovich Kryukov 15-Jun-11 19:17pm

Good, my 5. I just added my two cents about not using GetPixel/SetPixel, please see my solution.
--SA

bagus bujangga 15-Jun-11 20:29pm

the code is fast on WM6, Iam use VS2008, but when I am use to VS2010 Express its not work, VS2010 say:

The type or namespace name 'BitmapData' could not be found (are you missing a using directive or an assembly reference?)

I tray to add reference
using System.Drawing.Rectangle;
using System.Drawing.Imaging.ImageLockMode;
using System.Drawing.Imaging.PixelFormat;

and VS2010 express say the same message again.

Sergey Alexandrovich Kryukov 17-Jun-11 22:56pm

What you do in NOT ADDING REFERENCE (sorry for shouting).
"Using" does not do anything at all, it's just declares the naming of not fully qualified names. Adding reference is what you do in Solution Explorer at the References node of the project.
--SA