I’m trying to extrapolate the pixel value in a WxH img tensor with a given 2xN indices. When I tried to do the old fashioned way, by splitting apart the 2xN indices as a list of x and y values and use img[idx_x,idx_y] to extract the pixel values, I get an error saying that only datatypes of long, byte, or bool are allowed (which I can’t switch to since the locations themselves will be part of backpropagation).  Is there any other way to extract pixel value from a 2D matrix with a given coordinate array beside this? Thanks!
PS:(Actually, it’s a multichannel 2D array (so actually the tensor is WxHxC) with calculated 2D indices)