Thanks jonathan, I have manged to process each row as shown in these examples. The bit I am stuck on is applying the sample function on pixels I have already modifyed during the same pass. This is because the sample function only works on the input image ie input0.sample(...)
Is there a way of using the sample function on the out Row? ie Pixel pixel(channels); out.sample(centre, uVector,vVector,pixel) foreach ( z, channels ) ((float*)(out[z]))[x] = pixel[z];
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