Example Laplacian filter implementation with Vivado HLS and AXI4-Stream.
You can view the result using GIMP2 with RAW format.
Original image size is 240x120 pixels (which is output as solution1/csim/build/image.data).
Result image size is 238x118 pixels (which is output as solution1/csim/build/result.data).
Original: 
Output: 
Dataflow:  Notice only 2 line buffers are required.
See also: par2pix branch which is 2 times faster.
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