PJ56 image 140: Folded Filamentary Region (enhanced)

2023-12-10 01:10 UT
Credit : NASA / JPL-Caltech / SwRI / MSSS / Björn Jónsson © cc nc sa
Submitted By : Bjorn_Jonsson
Mission Phase : PERIJOVE 56
Source Image(s) : JNCE_2023326_56C00140_V01

This montage shows image PJ56_140 at several different processing levels. The perijove 56 images are significantly more difficult to process than earlier images due to horizontal 'striping' and greatly increased background noise. In this image, the blue channel is almost useless in the darkest areas at right. However, the quality of the red channel data is remarkably high.

The amount of processing increases from (a) to (d). The images are illumination adjusted. A short description of how the processing differs from (a) to (d):

(a) Destriped using code based on a description of what the ISIS3 dstripe application does. I experimented with several different destripe parameters.

(b) Crude color correction in the purple areas.

(c) Green and blue channels modified to reduce noise. Here the green channel is a combination of a low pass filtered green image and a high pass filtered red image. The blue channel is a combination of a low pass filtered blue image and high pass filtered green image.

(d) Enhanced contrast and color saturation.