Understanding the effects of compression


show more Understanding the effects of compression provides you with in-depth training on Design. Taught by Taz Tally as part of the Scanning Techniques for Photography, Art, and Design show less
please wait ...

Understanding the effects of compression

Previously we discussed the evils of applying interpolation to your image and the benefits of minimizing the amount of interpolation. Here I would like to visit a similar related topic and that is Compression, and where we want to avoid it and particularly if you're trying to maintain maximum image quality. What we have on screen here is two images. The one on the left is saved out as a . PSD, a native Photoshop file coming right from a RAW file, no compression. On the right is another version of this file. It's saved out instead of .PSD as a level 4 JPEG, so fair amount of JPEG compression has been applied to.

When you look at these two images, as you can see here we're looking at them at 100%, the image quality is fairly similar although the more you look in some of the details here you can see that this doesn't have quite as much detail. But you know what at a cursory inspection both images look okay. So you know maybe saving it out as JPEG is not so bad. But now let's...

Understanding the effects of compression
Video duration: 2m 4s 6h 53m Intermediate

Viewers:

Understanding the effects of compression provides you with in-depth training on Design. Taught by Taz Tally as part of the Scanning Techniques for Photography, Art, and Design

Subjects:
Design Photography
Author:
please wait ...