Watermark removal with ImageMagick

convert "$1" "$NON_TRANSPARENT_WATERMARKS" -compose DivideSrc -composite -quality 100 "${2%.*}.jpg"
#convert "$1" "$NON_TRANSPARENT_WATERMARKS" +level 0,66% ..."
# Usage
find -maxdepth 1 -type f | parallel dewatermark.sh {} out/{}
find ./out/ -maxdepth 1 -type f | parallel jpeg-recompress {} optimized/{/}

BGP image format

• http://xooyoozoo.github.io/yolo-octo-bugfixes/#camel&bpg=s&jpg=s
• https://github.com/mirrorer/libbpg/tree/master/html

JPEG manipulations

Lossy minification

• https://github.com/danielgtaylor/jpeg-archive (mozjpeg) online mozjpeg
• https://github.com/rflynn/imgmin

Lossless compression

• JPEGrescan
• packJPG (already in pcompress)

JPEG artifacts removal

• http://www.vicman.net/jpegenhancer/
• http://enhance.pho.to/
• http://www.topazlabs.com/dejpeg
• Photoshop / Ps Elements: Filter > Noise > Reduce Noise [x] Remove JPEG Artifacts

Enlarging

• https://imglarger.com/ SRCNN
• https://www.alienskin.com/blowup/
• https://topazlabs.com/ai-gigapixel/
• Inkscape Trace bitmap
• https://vectormagic.com/

Scaling

• GIMP Liquid rescale
• Photoshop Content-Aware Scale

Super-Resolution demo

Super-Resolution From a Single Image

Imitation with ImageMagick:

convert                       \
   small.png                  \
  -colorspace RGB             \
  +sigmoidal-contrast 11.6933 \
  -define filter:filter=Sinc  \
  -define filter:window=Jinc  \
  -define filter:lobes=3      \
  -resize 400%                \
  -sigmoidal-contrast 11.6933 \
  -colorspace sRGB            \
   better-quality-enlargement.png

Editors

• Luminar see also Creative Kit
• Face retouch
• Editor.Pho.to
• Pixlr Editor
• https://www.canva.com/
• https://www.picmonkey.com/
• https://www.befunky.com/
• https://snappa.com/
• Animated PNG

Invalidate objects on Amazon CloudFront

alias encodeURIComponent='perl -pe '\''s/([^a-zA-Z0-9_.!~*()'\''\'\'''\''-])/sprintf("%%%02X",ord($1))/ge'\'
cat $URL_LIST|while read -r URL;do echo -n "$URL"|encodeURIComponent;echo;done|sed -e 's|%2F|/|g'