An "image viewer" is a computer program or application that allows you to open and look at pictures, photos, or images on your computer or device. Full definition
It is the idea behind the work that dictates the final image the viewer sees. (annelllivingston.com)
However, when I opened these images in different image viewers on my laptop, the colours looked vastly different. (paintedfingertips.com)
Typical artifacts might be thumb - nail - sized copies of the images, used by image viewers to display a table of contents for a folder of images. (slaw.ca)