Hi, how do you "convert" CIImage to NSBitmapImageRep ? Raphael
On Fri, Apr 25, 2008 at 4:34 PM, Nick Forge <[EMAIL PROTECTED]> wrote: > I am working on a Computer Vision project that uses real-time image > processing. I am grabbing frames using QTKit, then converting the resulting > CVImageBufferRef into a CIImage, and then converting that into an > NSBitmapImageRep. I know that my resulting NSBitmapImageRep is fine, since I > am viewing it by sticking it in an NSImage and then popping that into an > NSImageView (the QTKit Capture Preview has a 1/2 second lag time - which is > unacceptable for this project). Everything works as it should, but when I go > to grab the raw pixel data from the NSBitmapImageRep like so: > > unsigned char *bitmapData = [self bitmapData]; > > (btw it says "self" because this is from a category of NSBitmapImageRep) > > The resulting array, bitmapData, is an array of zeroes! Every pixel sample > in bitmapData is zero, yet I can draw the image and the image IS there. > What's going on? Any suggestions as to what I may be overlooking? > > Thanks in advance, > Nick Forge > _______________________________________________ > > 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/raphael.sebbe%40gmail.com > > This email sent to [EMAIL PROTECTED] > _______________________________________________ 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 [EMAIL PROTECTED]
