A bitmap, short for "binary digit map," is a digital image file format. It represents a graphic using pixels, each pixel having its color and collectively forming the image. When you look at a digital ...

The four types of bitmap headers are differentiated by the Size member, which is the first DWORD in each of the structures. A color table describes how pixel values correspond to RGB color values. RGB ...

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Bitmap images and image masks are like any drawing primitive in Quartz. Both images and image masks in Quartz are represented by the CGImageRef data type. As you’ll see later in this chapter, there ...