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CARTAvis / carta-frontend

Source code repository for the frontend component of CARTA, a new visualization tool designed for the ALMA, the VLA and the SKA pathfinders.
https://cartavis.github.io/
GNU General Public License v3.0
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Include sinh/asinh color transfer functions as options in render widget #1992

Open jehibbard opened 1 year ago

jehibbard commented 1 year ago

This request came during a CARTA v3.0 webinar given by J. Ott at NRAO. The user said these are available in DS9, so would be good to have in CARTA.

d3v-null commented 1 year ago

This would be a great addition, as there is currently no colour transfer function that is symmetric about 0 (other than linear of course).

kswang1029 commented 1 year ago

@d3v-null you can try to apply a contrast to the linear transfer function to make a few symmetric effective transfer functions. Screen Shot 2022-09-06 at 10 48 54

d3v-null commented 1 year ago

thanks @kswang1029 , but unfortunately at the moment the contrast doesn't sync with other images using raster matching. They do sync once when raster matching is first toggled but don't update.

kswang1029 commented 1 year ago

thanks @kswang1029 , but unfortunately at the moment the contrast doesn't sync with other images using raster matching. They do sync once when raster matching is first toggled but don't update.

yes, a to-do in the near future: https://github.com/CARTAvis/carta-frontend/issues/1959

veggiesaurus commented 1 year ago

@veggiesaurus to look into how things behave when changing contrast/bias