Halide function failing with an error `Input buffer b0 is accessed at 2, which is beyond the max (-1) in dimension 2`

Question

I'm converting COCO2017 dataset to RAW Bayer format using Approx-Vision library. It works just fine for most of the images, but fails for other images.

I am using pipeline_V2.cpp which is run by this python script. For some images it fails with the following error:

root@167545c2c5e4:/approx-vision/pipelines/common# ./pipeline_V2.o /datasets/000000431848.png /datasets/ 
Error at ./pipeline_V2.cpp:153:
Input buffer b0 is accessed at 2, which is beyond the max (-1) in dimension 2
Aborted (core dumped)

Does any one know why that is happpeing or how to fix it?

Normally it is supposed to output a RAW BAYER image in .png format.

Answer 1

The problem originates from image channels. The image must be 3 channeled of type [HxWxC] - where C is a number of channels.