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Harvard
University Library Page Images Evaluation Project
home 006051784_0002, b/w image The Strathmore quality deckle edge book papers: Strathmore Japan, Old cloister, Strathmore, Old Strathford, Alexandra. Mittineague, Mass., Manufactured by Mittineague Paper Company [1906] [163] l. incl. plates, port. front. 25 cm. [HOLLIS 006051784] |
Image Quality Evaluations: 2006 study (librarian evaluators) - uncorrected camera TIFF (source for the processed RGB TIFF) (16,000 KB) - processed RGB TIFF (source image for JP2 processing) (15,726 KB) - 600 ppi 1-bit TIFF (from processed RGB TIFF) (342 KB) -- image production notes Google Book Search version (not evaluated: linked here for comparison to JP2) |
Quality
level |
Setting |
File
size (KB) |
Page
image |
evaluated in 2006 |
0 |
lossless |
8,916 8,845 8,787 |
no no no |
|
1 |
PSNR, 40 dB MSE, slope value 50980 Q = 70 |
2,074 1,565 1,232 |
yes no no |
|
2 |
PSNR, 38.3 dB MSE, slope value 51492 Q = 50 |
1,539 665 664 |
no yes no |
|
3 |
PSNR, 36.7 dB MSE, slope value 51748 Q = 40 |
899 404 477 |
no yes no |
|
4 |
PSNR, 35 dB MSE, slope value 51876 Q = 35 |
700 365 395 |
yes no no |
|
5 |
PSNR, 32.5 dB MSE, slope value 52004 Q = 30 |
389 264 320 |
no yes no |
|
6 |
PSNR, 30 dB MSE, slope value 52196 Q = 20 |
187 150 187 |
yes no no |