Hog: invalid values

[ashutikhin]

Output tensors' values don't meet standard.

1) Hog Cells. The format of both output tensors is VX_TYPE_INT16. But there is no q7.8 translation, i.e. multiplication by powf(2, 8). This leads to zero features tensor in Hog Features.

2) Hog Features. There is no window [processing], i.e. window_width, window_height, window_stride and block_stride are not used for features tensor computation.

[kiritigowda]

@antonsh26 can you explain the part 1 of the bug more clearly. Thanks!

[ashutikhin]

@kiritigowda Output of Hog Cells are tensors of VX_TYPE_INT16 with fixed point 8. But here is converting from a floating-point value to a fixed-point value without using this fixed point.