mrlixm/gamutin

Prototype color-science utility to check gamut footprint of an image. As CLI and GUI.

Liam Collod

Python Software Engineer and VFX artist. I am specialized in surfacing, lighting compositing, color-science and image-processing.

Projects

I share a lot of the code I write on my personal time so make sure to check some of those projects :

stars	name	description	tags
	lqtTextEditor	A more advanced text/code editor for PyQt
	lqtPushButtonAligned	A Qt button where you can set in which direction the text and its icon is aligned.
	AgXc	Fork of Troy.S AgX, a display rendering transform available via OCIO and more.
	Frmb	Convert file structures to right-click context menu for Windows.
	Autodesk_Maya	Collection of resources for Autodesk's Maya DCC (modelling, scene assembly, ...).
	Foundry_Mari	Collection of resources for Foundry's Mari DCC (texturing).
	Foundry_Nuke	Collection of resources for Foundry's Nuke DCC (compositing).
	Foundry_Katana	Collection of resources for Foundry's Katana DCC (scene assembly).
	lllogger	A simple lua logging module inspired from Python's one.
	opscripting	Improving Katana OpScripting workflow in a pipeline context.
	katananodling	Custom API to create and register custom Katana nodes in python.
	KUI	Katana OpScript for flexible instancing setup.
	Streamlit_Temperature2RGB	web-app to convert Kelvin temperature to RGB colorspaces.
	streamlit-colour-plotting	web-app to plot colors, images and colorspaces in graphs.

gamutin's Issues

add support for checking color values input

Issue

Example I receive the tripled (0.65, 0.03, 0.05) encoded in ACEScg and I would like to know if it's inside sRGB ?

Implementation

CLI

• Create a new subcommand check-color ?
• Or just accept 3 values to check ?

[editor] double slider implementtion

Create a nice looking QtWidget to select a floating point value from a slider.

To have a look :

• https://gist.github.com/dennis-tra/994a65d6165a328d4eabaadbaedac2cc

[editor] implement image preview widget

Offer the possibility for the user to preview the image usually produced directly in the interface instead of having to export it somewhere.
(corresponds to the Target/Preview Only option)

[core] add sRGB 2.2 variant

sRGB but with the 2.2 power function instead

[core] detect colorspace from icc profiles ?

I have a function find_colorspace that can guess accurately the colorspace of a file.
For now the function works around colorspace name in the file's name/parent dir or the chromaticities attribute if it's an exr.
Also add support for file format that can ship with an ICC profile. If it's possible to derive a colorspace from the ICC profile or not.

[editor] implement an integrated search filter prototype

Insipred by : https://rystorm.com/blog/integrated-search-filters

Would be interesting how this could be implemented in Qt.

[editor] implement color-picker widget

Necessary to pick the invalid and valid color.

Requirements :

• color-managed
  • view-transform option (colorspace in which the widget is displayed) (make sure to store it in settings)
  • input colorspace (colorspace in which the values in fields are encoded)
  • output colorspace (colorspace in which the values are stored and the later used)
• "preview" state, open the full color editor when clicked
• implement a picker ? (todo later ?)