Best quality possible?

[TravelTrader]

First I have to say that it's a great tool. I am so happy that I found it!

Now I need it for a screenshot where I use the cv2 library on it. And the quality leads to about 10% errors. Here you can find a part of it.

My settings are

quality=100
window_size=2400,1000
format=jpg
...

Of course, I tried around with the numbers. But with highest quality the window size does not change a lot.

Any ideas or hints? Thanks!

[maaaaz]

Hello @TravelTrader, Thanks for your kind feedback.

I'm no expert at all in image processing, but:

• this bad image quality (hence error-prone processing) is totally due to the capture phase ? The source image leads to 0% error ?
• aside the quality and window_size, have you tried a different format ? Remember that these parameters are only available using the phantomjs renderer
• can you try to use another renderer (chrome or chromium or firefox) ?
• can a tool like imagemagick could be used after webscreenshot to enhance the problem areas on images ?

Cheers.

[TravelTrader]

Thanks @maaaaz. Good ideas. I tried around but could not improve it.

For me it's a miracle why a screenshot on my desktop is much better than a screenshot using your library and a better solution... maybe it's because the code runs on a server without a window manager?

[maaaaz]

Thanks @maaaaz. Good ideas. I tried around but could not improve it.

Argh! Sad to hear.

For me it's a miracle why a screenshot on my desktop is much better than a screenshot using your library and a better solution... maybe it's because the code runs on a server without a window manager?

I really don't know. One other idea is that you can try to add here a phantomjs zoomfactor statement like for instance page.zoomFactor = 1.25; (125% zoom)