## Forum novic

### Instructions for Exercise 4

Instructions for Exercise 4

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).

Re: Instructions for Exercise 4

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.