Images

The image of a sheet of music is recorded as one image file:

• We today impose the "png" format. In the future, we should be able to support any major format, provided that:

  • The format allows to always get the same image, pixel-wise. For example, some "pdf" encodings lead to image variations depending on the renderer being used at read time.
  • A multi-page file format (like "pdf" or "tiff") allows a URL to point directly to a specific page within the file.

• Image type is gray image with each pixel coded on one byte (gray integer value in 0..255 range, with 0 for full black and 255 for full white). This is the Java type named BufferedImage.TYPE_BYTE_GRAY.
  Remark: Using gray values (rather than plain black & white binary values) allows to cope with anti-aliasing effects should the initial image need any rescaling to fit with predefined interline value.