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Bad quality (JPEG Compression) when saving PNG #121
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These aren't methods from this library:
How are you calling them? |
Sorry, i'm using promisification functionnality of bluebird. So readAsync ad writeAsync are the promisified version of read and write method from Jimp. |
I'm doing a release in a few days. That will have some fixes in it, could you check again then? |
I don't have time to test it again but i think it's due to the pngjs package more than Jimp |
Yes, definitely to do with pngjs. I'll keep an eye on it and if there's improvement to that library I'll pull it in. Thanks for logging it. |
Tested again after updating pngjs. Issues still presents. |
Suspect same as this issue: #134 |
still an issue |
Hi,
I'm having some trouble with image quality on JIMP.
I just download some JPEGs and save them as PNGs :
Jimp.readAsync(url) .then(function (image) { return image.writeAsync("image.png") }
The quality of the PNG is bad comparing to the original JPEG. It's like I was saving it twice in JPEG. See the exemple here (you can see that additionnal JPEG artefacts are presents around the white letters in the PNG):
ORIGINAL JPEG
SAVED PNG
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