Adding Noise
After viewing the images in the previous post on several computer monitors with varying brightness and contrast levels, I found that the “edges” of the galaxies were clearly visible on some displays. Adding noise to the images seems to help fix the issue. Tweaking the brightness and gamma settings in GSnap’s parameter file can produce nice images for a specific display, but without noise, the image quality is less consistent on other displays.
Here are some “noise-enhanced” images. The noise was added using GIMP’s RGB noise filter. I tried using ImageMagick’s noise generators, but they didn’t produce the desired result. As an alternative to adding noise, I could also use a background image that already includes some noise. It would be straightforward for GSnap to load a background image and paint on top of it instead of starting with a blank canvas.
April 13th, 2015 at 3:45 am
Internet is the best source for collecting data for research. Students can access number of academic databases, research journals and papers for writing research dissertation. They must be careful when they collect data.
August 2nd, 2017 at 10:54 pm
There is a channel choice that enables you to make a focal point flare. It's under the alternative "Light and Shadow". To make skin look faultless, you utilize the mending brush apparatus or the clone instrument. Assignment Clock. The clone apparatus totally clones a range, while the recuperating brush device clones the zone yet modifies it to fit the foundation.
October 9th, 2018 at 10:28 pm
This is indeed a great and enriching experience, a part from work it enables you to explore new things and learn some amazing skills.