# Greyscale palette is greatly reduced when resizing images

**URL:** https://community.mp3tag.de/t/greyscale-palette-is-greatly-reduced-when-resizing-images/60746
**Category:** Fixed Bugs
**Tags:** bug-fixed
**Created:** [April 19, 2023, 5:50pm UTC](https://community.mp3tag.de/t/greyscale-palette-is-greatly-reduced-when-resizing-images/60746 "2023-04-19T17:50:00Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![mb2007](https://community.mp3tag.de/user_avatar/community.mp3tag.de/mb2007/32/22590_2.png) [@mb2007](https://community.mp3tag.de/u/mb2007)
#### Post date: [April 19, 2023, 5:50pm UTC](https://community.mp3tag.de/t/greyscale-palette-is-greatly-reduced-when-resizing-images/60746/1 "2023-04-19T17:50:00Z")

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For grayscale (greyscale) JPEGs, Adjust Cover downsamples the image from 256 to 4 colors and outputs a non-greyscale JPEG.

8-bit grayscale images should maintain their colorspace during and after conversion.

Example: Drag attached 1000px 8-bit (256-color) grayscale image into cover art box. Right-click and choose Adjust Cover. Resize to 600px, any quality. Observe unwanted color reduction. Right-click and save the reduced image to a new file. Observe (e.g. in Photoshop) that it's not a grayscale JPEG anymore, and with compression artifacts it now has ~119 colors, but was clearly derived from the 4-color intermediate version.

 ![03. Xmas Flexi](https://community.mp3tag.de/uploads/default/original/2X/2/248e9bbb23fe819295448d3b1ccc5d10dfee9f29.jpeg)

Output after adjustment in Mp3tag:

 ![reduced](https://community.mp3tag.de/uploads/default/original/2X/3/3c2efeb08be03e61a232f4757b65ff5a8852bc26.jpeg)

Expected output is more like this (made with Photoshop):

 ![600px](https://community.mp3tag.de/uploads/default/original/2X/e/e5d5606331012335aea0da12ae23d7bdd151d01f.jpeg)

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<div class="post-metadata">

### Author: ![Florian](https://community.mp3tag.de/user_avatar/community.mp3tag.de/florian/32/5759_2.png) [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [October 13, 2023, 6:57pm UTC](https://community.mp3tag.de/t/greyscale-palette-is-greatly-reduced-when-resizing-images/60746/2 "2023-10-13T18:57:03Z")

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Thank you for reporting this issue. I found a solution to this problem and have fixed it with [Mp3tag v3.22e](https://community.mp3tag.de/t/455).

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<div class="post-metadata">

### Author: ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)
#### Post date: [November 12, 2023, 6:57pm UTC](https://community.mp3tag.de/t/greyscale-palette-is-greatly-reduced-when-resizing-images/60746/3 "2023-11-12T18:57:06Z")

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