On 30/03/2010, at 9:59 AM, paul morel wrote: > Hi, I would like to apply a custom CIFilter to a grayscale image. The problem > is that the kernel of the CIFilter is for RGB images. So the output is a RGB > image but I would like to convert it in grayscale and I have no idea how I > could do that.This would be to display in a IKImageview. > If someone have an idea let me know,Thanks,Paul >
A greyscale RGB image contains identical data in the three channels, so throw any two away. You can probably do that easily by creating a bitmap having the greyscale characteristics you want and drawing the RGB image into it. That's likely to be faster than picking over the bitmap data yourself. --Graham _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
