Previous page Next page

Output image file quality / JPEG artifacts


Standard Test Scene

It wouldn't be an Olympus if it didn't provide a mind boggling range of output image sizes, the C-7000 has no less than eight in combination with two compression levels. The camera organizes these into four settings; SHQ, HQ, SQ1 and SQ2. The SHQ and HQ settings are full resolution, the two SQ settings can be configured to your preference of size and compression. In addition there is also a 3:2 aspect ratio size (3072 x 2048). The C-7000 also provides uncompressed TIFF as well as RAW settings.

Below you will find crops of the same 240 x 180 portion of the center of a sequence of images taken at some of the available combinations of image size and quality. Crops shown are at 100%, saved as extremely high quality JPEG. The RAW file was converted to a TIFF using Olympus Master 1.0.

(coming soon, we received no
software with our C-7000)

3072 x 2304 RAW (Uncompressed)
10,469 KB .ORF (not for download)
3072 x 2304 JPEG SHQ
4,789 KB .JPG
3072 x 2304 JPEG HQ
1,582 KB .JPG
2592 x 1944 JPEG SQ1 Fine
3,383 KB .JPG
2048 x 1536 JPEG SQ1 Fine
1,944 KB .JPG
1600 x 1200 JPEG SQ1 Fine
1,277 KB .JPG
 

1280 x 960 JPEG SQ2 Fine
664 KB .JPG

 

The C-7000's SHQ mode uses a very low compression setting which means no visible artifacts but also large files (typically over 4 MB at full resolution). The HQ mode appears to be a fairly big jump in compression (files now down to 1.5 MB) but even so artifacts aren't that noticeable. Again we see another good downsampling interpolation algorithm with no jaggies.

Previous page Next page
2
I own it
0
I want it
10
I had it
Discuss in the forums

Comments