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Upscaling factor estimation on pre-JPEG compressed images based on difference histogram of spectral peaks.

Shangjun LuoJiarui LiuWenbo XuWei LuYanmei FangJinhua ZengShaopei Shi
Published in: Signal Process. Image Commun. (2021)
Keyphrases
  • jpeg compressed images
  • compressed images
  • gray level
  • dct domain
  • image compression
  • similarity measure
  • video sequences
  • preprocessing
  • motion estimation
  • signal processing
  • video coding
  • dct coefficients