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accessing pixels in an image

I'd like to wean myself off of GWorlds to do image processing on images in Carbon width Core Graphics, so I'd like to access pixels at the native resolution. Is there an easy way of doing this? Near as I can figure out, I need to call :

CGImageSourceCreateWithURL
CGImageSourceCreateImageAtIndex

to read the image file, then call

CGImageGetBitmapInfo
CGImageGetBitsPerComponent(
CGImageGetBitsPerPixel
CGImageGetColorSpace
CGImageGetWidth
CGImageGetHeight

to get enough information to create a Bitmap context with

CGBitmapContextCreate

which is then populated with pixels from the image file with

CGContextDrawImage

Is this right?


Cocoa has a nice method to do this in one line

NSBitmapImageRep *srcImageRep = [NSBitmapImageRep imageRepWithData: [srcImage TIFFRepresentation]];

Is there something like this for Carbon?


--
Ken Turkowski                  email@hidden
Reality Pixels           http://www.realitypixels.com
Computer Graphics     2D     3D     Immersive Imagery
Photo-mosaicing       Panoramas       Computer Vision
Applied Mathematics  Numerical Analysis  Optimization

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