prism

package

v1.8.19 Latest Latest Go to latest Published: Jan 15, 2026 License: MIT Imports: 4 Imported by: 0

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Repository

github.com/kovidgoyal/imaging

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README ¶

Convert colors using ICC profiles to sRGB with support for v2 and v4 ICC color profiles, black point correction and gamut compression.

This code was originally based on code from two other projects, https://github.com/mandykoh/prism (mainly image file format parsing, MIT license) and http://github.com/go-andiamo/iccarus (mainly ICC file parsing, Apache 2.0 license). However it is extensively modified and bears little resemblance to either project's code anymore.

Documentation ¶

Overview ¶

Package prism provides a set of tools for colour management and conversion. Subpackages provide support for encoding/decoding image pixel data in specific colour spaces, and conversions between those spaces.

Index ¶

func ConvertImageToNRGBA(img image.Image, parallelism int) *image.NRGBA
func ConvertImageToRGBA(img image.Image, parallelism int) *image.RGBA
func ConvertImageToRGBA64(img image.Image, parallelism int) *image.RGBA64

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func ConvertImageToNRGBA ¶

func ConvertImageToNRGBA(img image.Image, parallelism int) *image.NRGBA

ConvertImageToNRGBA is a convenience function for getting an NRGBA image from any image. If the specified image isn’t already NRGBA, a conversion is performed.

parallelism specifies the maximum degree of parallel processing; a value of 4 indicates that processing may be spread across up to four threads. However, this is not guaranteed as not all conversions are parallelised.

func ConvertImageToRGBA ¶

func ConvertImageToRGBA(img image.Image, parallelism int) *image.RGBA

ConvertImageToRGBA is a convenience function for getting an RGBA image from any image. If the specified image isn’t already RGBA, a conversion is performed.

parallelism specifies the maximum degree of parallel processing; a value of 4 indicates that processing may be spread across up to four threads. However, this is not guaranteed as not all conversions are parallelised.

func ConvertImageToRGBA64 ¶

func ConvertImageToRGBA64(img image.Image, parallelism int) *image.RGBA64

ConvertImageToRGBA64 is a convenience function for getting an RGBA64 image from any image. If the specified image isn’t already RGBA64, a conversion is performed.

parallelism specifies the maximum degree of parallel processing; a value of 4 indicates that processing may be spread across up to four threads. However, this is not guaranteed as not all conversions are parallelised.

Types ¶

This section is empty.

Source Files ¶

View all Source files

prism.go

Directories ¶

Path	Synopsis
meta Package meta and its subpackages provide support for embedded image metadata.	Package meta and its subpackages provide support for embedded image metadata.
autometa Package autometa provides support for embedded metadata and automatic detection of image formats.	Package autometa provides support for embedded metadata and automatic detection of image formats.
gifmeta
icc Package icc provides support for working with ICC colour profile data.	Package icc provides support for working with ICC colour profile data.
jpegmeta Package jpegmeta provides support for working with embedded JPEG metadata.	Package jpegmeta provides support for working with embedded JPEG metadata.
netpbmmeta
pngmeta Package pngmeta provides support for working with embedded PNG metadata.	Package pngmeta provides support for working with embedded PNG metadata.
tiffmeta
webpmeta Package webpmeta provides support for working with embedded WebP metadata.	Package webpmeta provides support for working with embedded WebP metadata.

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