taskGNU Astronomy Utilities - Tasks: task #13555, Add Hue-Saturation-Lightness and...


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task #13555: Add Hue-Saturation-Lightness and Hue-Saturation-Value color spaces

Submitter:  Mohammad Akhlaghi <makhlaghi>
Submitted:  Mon 20 Apr 2015 06:09:20 AM UTC
Should Start On:  Sun 19 Apr 2015 03:00:00 PM UTC Should be Finished on:  Sun 19 Apr 2015 03:00:00 PM UTC
Category:  ConvertType Priority:  1 - Later
Item Group:  New feature Status:  Postponed
Privacy:  Public Percent Complete:  60%
Assigned to:  None Open/Closed:  Open
Effort:  0.00

Thu 27 Dec 2018 01:55:21 PM UTC, comment #2: 

An `--rgbtohsv' option was recently added to convert the input RGB channels (for example from a JPEG image) to HSV (for saving as FITS).

But we also need its inverse. Maybe an option like: `--inputmodel'. Where the user can specify the nature of the input color model when there is more than one color channel (for example RGB, HSV, CMYK).

With this option, if the three input channels are specified as HSV, then if the output is a format that only supports RGB (for example JPEG, EPS, or PDF), we can convert the HSV color channels to RGB.

Mohammad Akhlaghi <makhlaghi>
Project Administrator
Sun 23 Dec 2018 09:46:44 PM UTC, comment #1: 

ConvertType has a new option called `--colormap' with the ability to specify a color map to display single-valued datasets (for example FITS images) in formats that support color (for example PDF or JPEG).

Currently the accepted color mappings are "gray", "hsv" and "sls", but more can be added easily now that the infra-structure has been implemented.

However, this task isn't complete yet because there isn't yet a full converter between RGB and HSV.

Mohammad Akhlaghi <makhlaghi>
Project Administrator
Mon 20 Apr 2015 06:09:20 AM UTC, original submission:  

Currently only RGB and CMYK are supported. Add Hue-Saturation-Lightness and Hue-Saturation-Value color spaces too for more generality.

Mohammad Akhlaghi <makhlaghi>
Project Administrator


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