Help with Images

[AlexDPU]

I am trying to convert a UIImage selected from the iPhone Photo Library to a bitmap image and then to a byte array from the bitmap image. I was wondering if anyone knew of any resources or how to go about doing this. Thanks so much.

AlexDPU

[david_david]

you can convert UIImage to NSData easily by
NSData *data = UIImagePNGRepresentation(image);
and convert NSData to bytes

[AlexDPU]

Thanks david_david

I have tried that and it doesnt seem to work for my purposes. My Image needs to be a bitmap before filling the byte array. Does converting the Image to a UIImagePNGRepresentation do that??

Here is the code I am using at the moment:
NSData *imgData = UIImagePNGRepresentation(image);

NSUInteger len = [imgData length];
Byte *byteData = (Byte*)malloc(len);
memcpy(byteData, [imgData bytes], len);

//do some stuff with the bytearray later