sharpenbad

• reimplementation SHARPENBAD

sdsnr

• added SDSNR - Standard deviation as SNR

UM

• correct "Universal Scale" of metrics (UM). Analise pnm-images-test, part "core1": 14 images, jpeg compression of quality 3-100.

down

• execution time of ssim and vifp by 4 times down

psnr-c

• fixed vifp1
• fixed out image correlation
• added mse-c and psnr-c (correlation).

smallfry

Added metrics:

• SMALLFRY
• SHARPENBAD
• correlation
  Source: libsmallfry.

init

• init release