There are lots of image editors in Linux. However, two packages come to mind.
The most popular by far is the GIMP: GNU Image Manipulation Program. It is often compared to photoshop.
Another package is ImageMagick, which is primarily a set of command line tools used for post processing images. Very useful for web servers.
All types, from web browsers to CAD software, from image editing to web servers, from industrial control software to video games.
image editing softwre
Image editing software.
multimedia
A photo editor
Image editing program or software, sometimes as image editor
It is both. An 'application' is a type of software.
Some recommended Linux video capture software options for recording and editing videos include OBS Studio, Kdenlive, Shotcut, and OpenShot.
Adobe Photoshop is a graphics editing program. Image editing program.
The purpose of the RGBAlpha channel in image editing software is to control transparency in an image. When it appears greyed out, it means that the transparency settings are not currently active or editable.
The unsharp mask feature in image editing software enhances the clarity and sharpness of an image by increasing the contrast along the edges, making them appear more defined and crisp.
The option to adjust RGB Alpha values may be greyed out in the image editing software because the image does not have an alpha channel, which is needed to adjust transparency.