DeeDeeG

That's great, thank you. On the point of: >Are there better tools for novices such as myself In my view, Mozjpeg (or any other [variant](https://en.wikipedia.org/wiki/Libjpeg#Forks) of [libjpeg](htps://en.wikipedia.org/wiki/Libjpeg)) is probably the...

I found out some things that could help guide users. Regarding PNG vs JPEG: If your input is a PNG, in some cases it is best to keep it a...

@Nithanaroy Hmm... I cropped/scaled manually with GIMP. (I am not much of a programmer myself, so I can't help much with Python specifically.) I searched this in google: `lossless crop...

I did get something similar to what this issue's title suggests. - I put a **PNG in**, didn't set a guetzli quality flag. Got **401 KB output** jpeg. Details a...

Example of the problem I want to fix: Assuming: - Target quality is 98. - Output A has quality 99, is 112kB. (lower quality, bigger file size) - Output B...

Hi @szabadka. I am not looking for an alternative encoder that is better than Guetzli. I just want to improve Guetzli, if possible. I hope Guetzli will use a more...

@wpbullet I think basically the answer to your question is yes. As @khavishbhundoo mentioned, Guetzli optimizes based on the Butteraugli metric. That paper is very informative also. Here is a...

Note that most encoders do chroma downsampling by default, meaning they save only half or quarter-resolution data for color (and full resolution for brightness). This can cause weird color degradations,...

It's been a month, but this answer doesn't appear to satisfy the intent/drive of the original question. I realize there is an error message that says, if you want this...

I also noticed this. Essentially it looks like Guetzli is single-threaded. I believe Guetzli tries a number of encodes, scores them on their visual fidelity against the original, and picks...