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Instructions for Exercise 4

 
Slika od Jon Muhovič
Instructions for Exercise 4
od Jon Muhovič - ponedeljek, 26. november 2018, 15:02
 

were somehow missing a crucial point of the JPEG algorithm (the quantized coefficients must be rounded).

This has since been corrected. Sorry for any trouble (or time wasted debugging).

Slika od Jon Muhovič
Re: Instructions for Exercise 4
od Jon Muhovič - sreda, 28. november 2018, 09:16
 

Obviously the coefficients must be element-wise multiplied with the quantization matrix after rounding to properly reconstruct your original pixel values.

The pdf has been updated again and again, sorry for time you wasted debugging this.