Swapped width/height during transpose of DCT

[kobaj]

img_hash/src/dct.rs

Line 66 in dbfb37f

transpose(scratch, packed_2d, width, height);

Shouldn't the width, height here be swapped? Since on line 59 it was transposed already via width * height. Now it should be transposed height * width.

eg

transpose(scratch, packed_2d, height, width);