Bug fixes

• Add support for SubImages (and other GenericImageView implementations) #49
• Fix out of bounds panic #50
• image is now only supported from verion 0.24 and higher.

General improvements

• Improve detection of QR codes with large perspective transformations #48

Allow image 0.24

• Allow usage of image version 0.24 #44

v0.4.0

• Add sensible error message on invalid char #43
• Replace failure dependency with anyhow/thiserror

General improvements

• Update image dependency to 0.23 #18
• Add optional decoder that returns extra information #26

Better UTF-8 Handling

• Detect UTF-8 in eight-bit data by checking for the presence of the 0xC3 Ã character
• Some error correcting improvements

README.md update

• No functional changes (new version to update crates.io README.md as well)
• Update README.md examples for image reference usage
• Update minimum rustc version due to breakage in backtrace package

General improvements

• Update image dep to version 0.22 #7 #10
• Some improvements to the algorithms #11
• Image source can now be passed as a reference #12

Bugfix

Fix a bug where QR codes without borders would not be properly decoded

More robustness

• Improve thresholding a little bit when blocks are entirely black or white
• Refine alignment pattern to better find the exact center.