Pseudocode

• Open .conf file
  • Read working directory
  • Read MinimumResolution
  • Read MinimumOrthoganalResolution (this is the other half of the the resolution tuple, e.g. 2160 or 3840 for 16:9 4K)
• Switch to working directory
• For each file in working directory
  • If file extension is .zip or .rar
    • Move to the next file in working directory
  • If file extension is .cbz
    • Replace .cbz in filename with .zip
    • Move to the next file in working directory
  • If file extension is .cbr
    • Replace .cbr in filename with .rar
    • Move to the next file in working directory
• For each file in the working directory
  • If file extension is not .zip or .rar
    • Move to the next file in working directory
  • If file extension is .zip
    • Extract the file to current path with automatic rename of extracted contents
    • Move to the next file in working directory
  • If file extension is .rar
    • Extract the file to current path with automatic rename of extracted contents
    • Move to the next file in working directory
• Flatten any resulting child directories with automatic rename so that all files are at the top level of the working directory
• For each image file in the working directory
  • If file has no resolution
    • Move to the next file in working directory
  • If file has resolution
    • Set MinimumDimension = Min(HorizontalFileSize, VerticalFileSize)
    • Set MaximumDimension = Max(HorizontalFileSize, VerticalFileSize)
    • If MinimumResolution > MinimumDimension OR MaximumResolution > MaximumDimension
      • Delete file
      • Move to next file in working directory
• Exit

It appears the resolution determination can be done via ImageMagick and/or exiv2.