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Support for palette access when reading indexed image formats

enhancement

Status: Closed (completed).

#2404 In SixLabors/ImageSharp;

· by Paul-JanPauptit was closed on Feb 2, 2026

Speed improvements to resize convolution (no vpermps w/ FMA)

area:performance

Status: Merged (completed).

SixLabors/ImageSharpnumber 2793

#2793 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Feb 4, 2026

Enhance XmpProfile to add XDocument normalization

enhancement

metadata:xmp

Status: Merged (completed).

SixLabors/ImageSharpnumber 3047

#3047 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Jan 22, 2026

Add proper IptcProfile support in PNG

enhancement

formats:png

metadata:iptc

Status: Merged (completed).

SixLabors/ImageSharpnumber 3048

#3048 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Jan 23, 2026

Add ICC profile conversion support to WEBP

area:performance

enhancement

formats:webp

metadata:icc

Status: Merged (completed).

SixLabors/ImageSharpnumber 3051

#3051 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Jan 28, 2026

Enable colorimetric normalization of JPEG image data during decode

formats:jpeg

metadata:icc

Status: Merged (completed).

SixLabors/ImageSharpnumber 2922

#2922 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Jun 4, 2025

Color conversion with ICC profiles

enhancement

formats:jpeg

help needed

metadata:icc

Status: Merged (completed).

SixLabors/ImageSharpnumber 1567

#1567 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on May 14, 2025

Fix Paeth Filter decode on platforms that do not support Ssse3 - Main

bug

formats:png

Status: Merged (completed).

SixLabors/ImageSharpnumber 2620

#2620 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Dec 15, 2023

Modernize and optimize pixel format operations across platforms.

API

arch:arm64

area:pixelformats

breakingSignifies a binary breaking change.Signifies a binary breaking change.

Status: Merged (completed).

SixLabors/ImageSharpnumber 2645

#2645 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Jan 30, 2024

TGA: Treat 32 bit True Color images always as transparent

formats:tga

Status: Merged (completed).

SixLabors/ImageSharpnumber 2643

#2643 In SixLabors/ImageSharp;

· by brianpopow was closed on Jan 15, 2024

Cleanup SimdUtils

arch:arm64

area:performance

Status: Merged (completed).

SixLabors/ImageSharpnumber 2654

#2654 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Feb 14, 2024

Replace custom Crc32

area:performance

formats:png

Status: Merged (completed).

SixLabors/ImageSharpnumber 2611

#2611 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Dec 9, 2023

Fix handling gif encoding for global palettes - Main

bug

formats:gif

Status: Merged (completed).

SixLabors/ImageSharpnumber 2615

#2615 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Dec 11, 2023

Allow decoding Tiff of different frame size.

area:metadata

breakingSignifies a binary breaking change.Signifies a binary breaking change.

formats:tiff

Status: Merged (completed).

SixLabors/ImageSharpnumber 2788

#2788 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Aug 18, 2024

Expose Convolution Api

API

enhancement

Status: Merged (completed).

SixLabors/ImageSharpnumber 2797

#2797 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Nov 19, 2024

V4 - Correctly handle transform spaces when building transform matrices.

area:transforms

breakingSignifies a binary breaking change.Signifies a binary breaking change.

bug

Status: Closed (abandoned).

SixLabors/ImageSharpnumber 2794

#2794 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Aug 17, 2024

V4 - Correctly handle transform spaces when building transform matrices.

area:transforms

breakingSignifies a binary breaking change.Signifies a binary breaking change.

bug

Status: Merged (completed).

SixLabors/ImageSharpnumber 2795

#2795 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Aug 17, 2024

V4 : Fix filtering on PNG encode.

bug

formats:png

Status: Merged (completed).

SixLabors/ImageSharpnumber 2778

#2778 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Jul 22, 2024

Replace PngCrcChunkHandling

API

breakingSignifies a binary breaking change.Signifies a binary breaking change.

Status: Merged (completed).

SixLabors/ImageSharpnumber 2786

#2786 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Aug 12, 2024

Add tagname to debugger visualization for Exif- and Iptc-values, to facilitate easier debugging and discovery

metadata:exif

Status: Merged (completed).

SixLabors/ImageSharpnumber 2787

#2787 In SixLabors/ImageSharp;

· by lassevk was closed on Aug 12, 2024

v4 Fix 2758

bug

formats:gif

formats:jpeg

security

Status: Merged (completed).

SixLabors/ImageSharpnumber 2764

#2764 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Jul 7, 2024

Merge 2681 to v4 Main

arch:arm64

area:performance

bug

Status: Merged (completed).

SixLabors/ImageSharpnumber 2690

#2690 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Mar 7, 2024

Simplify Color Space Conversion APIs

API

area:colorspace

breakingSignifies a binary breaking change.Signifies a binary breaking change.

codequality

Status: Merged (completed).

SixLabors/ImageSharpnumber 2739

#2739 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Jul 7, 2024

Add API for metadata conversion between formats.

API

area:metadata

area:pixelformats

breakingSignifies a binary breaking change.Signifies a binary breaking change.

enhancement

Status: Merged (completed).

SixLabors/ImageSharpnumber 2751

#2751 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on Jul 31, 2024

Modernize JPEG Color Converters

area:performance

formats:jpeg

platform:mono

Status: Merged (completed).

SixLabors/ImageSharpnumber 2917

#2917 In SixLabors/ImageSharp;

· by JimBobSquarePants was closed on May 6, 2025