The image-z subtype represents an image as a two-dimensional array of pixels, in scanline order. The following paragraphs describe the additional CLX functions that can be used to access image-z objects.
| image-z-bits-per-pixel | image | Function |
Returns and (with setf) changes the number of bits per data unit used to contain a pixel value for the image. Depending on the storage format for image data, this value can be larger than the actual image depth.
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| image-z-pixarray | image | Function |
Returns and (with setf) changes the two-dimensional array of pixel data for the image.
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