Basic understanding of "JPEG Quality"?

Discussions on NConvert - the command line tool for image conversion and manipulation

Moderators: XnTriq, helmut, xnview

User avatar
Moderator & Librarian
Posts: 6350
Joined: Sun Sep 25, 2005 3:00 am
Location: Ref Desk

Re: Basic understanding of "JPEG Quality"?

Post by XnTriq »

j7n wrote: Wed Feb 17, 2021 10:21 amI used layer blending mode Difference in Photoshop, and increased the contrast with Levels.
Oh, OK. I was guessing Raw Image Analyser or eXclusive OR.
XnTriq wrote: Sat Aug 16, 2014 7:30 am I support this request.

XnTriq wrote: Sat Jan 11, 2014 2:15 am
XnTriq wrote: Fri May 31, 2013 9:15 pm
  • Qt
    • Qt Quarterly: Composition Modes
      “Recent years have seen great improvements in computer graphics hardware, making it possible for developers to add advanced graphical features to applications, such as composition modes and partial transparency, previously only used in specialized graphics applications.”
    • Qt Reference Documentation: Composition Modes Demo
      “Composition Modes demonstrates the range of composition modes available with Qt.”
  • SimpelFilter
  • Kevin Jensen
    • Let’s Learn Math: Photoshop Blend Modes
      “One of the best features of Photoshop is the layer blending modes. They allow you to create spectacular effects with little to no effort. I’ve been taking a closer look into how Photoshop handles the blending of layers (especially the math side of it).”
  • Photoshop Essentials
  • Jim Tilander
    • Aurora: Comparing Images
      “In order to automate testing, you often need an image comparison step. This looks at comparing two different HD images.”