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Mona Jalal
Asked: 2016-10-19 09:55:19 +0800 CST

Conversion of png with alpha channel to jpg (without causing background artifacts)

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How can I convert a png file using terminal or maybe a Python script to a jpg without artifacts?

Here's an example of what I tried showing the artifacts I'm getting:

original image of a cat

jalal@klein:~$ convert cat.png cat.jpg
jalal@klein:~$ eog cat.jpg

image with distorted background

jalal@klein:~$ convert cat.png -quality 95 cat_95.jpg
jalal@klein:~$ eog cat_95.jpg

same issue

command-line

1 Answers

  1. Best Answer

    It looks like you are suffering from issues due to the alpha channel in your PNG.
    You can remove this and replace with a background of you choice using the following command:

    convert cat.png -background white -alpha remove cat.jpg
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