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iOS how to get background image while moving using CGContext

G

goldenlife

macrumors newbie
Original poster
Oct 2, 2010
24
0
Hi All,

I have made my grayscale image on background and above that put original image of that grayscale image.(i.e color image)

Now I want to get that background image on moving that foreground image.

I am trying this using CGContext, and I am able to do this when original color image is in background and grayscale image in on foreground, but when trying for vice versa, I am not getting anything of grayscale image..

so anybody can help? how to erase that foreground image, so that I can get UIImageView of background?

Please help...
 
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