Image Processing Toolbox User's Guide Previous page   Next Page

Block Processing Operations

Certain image processing operations involve processing an image in sections called blocks, rather than processing the entire image at once. The Image Processing Toolbox provides several functions for specific operations that work with blocks, for example, the imdilate function for image dilation. In addition, the toolbox provides more generic functions for processing an image in blocks. This section discusses these generic block processing functions.

To use one of the functions, you supply information about the size of the blocks, and specify a separate function to use to process the blocks. The block processing function does the work of breaking the input image into blocks, calling the specified function for each block, and reassembling the results into an output image.

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