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Transpose Blocks of Image Using Block Processing

This example shows how to transpose blocks of an image using block processing.

Example Model

Open the Simulink® model.

modelname = "ex_blkblockprocessing.slx";

The model reads an input image using an Image From File block and performs a transpose operation on the blocks of the image using a Block Processing block with these parameters:

  • Number of inputs1

  • Add port to supply subsystem parametersoff

  • Number of outputs1

  • Block size{[32 32]}

  • Overlap{[0 0]}

  • Traverse orderRow-wise

  • Subsystem — Consists of a Transpose (Simulink) block that transposes each block of the input image.

The Block Processing block divides the input image of size 64-by-64 into 4 blocks, each of size 32-by-32. It performs a transpose operation on each block, and then reassembles the transposed blocks to construct an output image of size 64-by-64.

Simulate the Model

Run the model. The model displays the input image and the block-wise transposed output image using Video Viewer blocks.