35 lines
1.4 KiB
Diff
35 lines
1.4 KiB
Diff
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From 3f1f58950971791b8deaa7fc63187926aa5dd7b9 Mon Sep 17 00:00:00 2001
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From: Fabian Vogt <fabian@ritter-vogt.de>
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Date: Wed, 14 Oct 2020 11:00:33 +0200
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Subject: [PATCH] generate_wallpaper_sizes.py: Properly compress wallpapers
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The current options are quite bad and result in files which are unnessarily
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big, even bigger than the original file. The Pillow documentation says:
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> Values above 95 should be avoided; 100 disables portions of the JPEG
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> compression algorithm, and results in large files with hardly any gain
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> in image quality.
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"100" is not a valid value for the subsamping parameter either.
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This change actually enables proper compression with subsampling and also
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enables optimization of internal settings.
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Result: From 34MiB down to 12MiB with no noticable difference.
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---
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wallpapers/generate_wallpaper_sizes.py | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/wallpapers/generate_wallpaper_sizes.py b/wallpapers/generate_wallpaper_sizes.py
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index b5f997b2..79298c7b 100644
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--- a/wallpapers/generate_wallpaper_sizes.py
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+++ b/wallpapers/generate_wallpaper_sizes.py
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@@ -43,4 +43,4 @@ for orientation in ('horizontal', 'vertical'):
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else: box = None
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resized_image = image.resize((width, height), Image.LANCZOS, box)
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resized_image.save(base_dir / f'{width}x{height}{extension}',
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- quality=100, subsampling=100)
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+ quality=90, optimize=True, subsampling=1)
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--
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2.25.1
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