Set/Modify pixels in a "BitmapImage"

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C#

WPF

C#4.0

How do you set or modify a pixel in a BitmapImage?

Posted 2-Sep-10 11:08am

N_tro_P

Updated 2-Sep-10 11:42am

v2

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2 solutions

Solution 1

BitmapImage is a WPF class, isn't it ? Your question is not tagged as WPF.

You can read my image processing articles for how to do it with GDI+. I know you can convert between Bitmap and BitmapImage by using a stream to store the bytes between the two. I am not sure it's possible to access the pixels of a BitmapImage.

Posted 2-Sep-10 11:37am

Christian Graus

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[no name] 2-Sep-10 17:43pm

How do you send the bytes back to the BitmapImage? I see how to get them... Is it possible to modify them and send them back with out using Bitmap?

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mrdosu · Accepted Answer · 2010-09-03T00:36:00

Solution 2

You can use WritableBitmap since .Net 3.5 iirc
http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.writeablebitmap.aspx[^]

Posted 3-Sep-10 0:36am

mrdosu

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[no name] 3-Sep-10 9:12am

Thank you!