Files

Supported image file formats

Edip support normally following images files formats to load into the program for processing:

  • bmp, dib (bitmap image file.)
  • jpg, jpeg, jpe (Join photographic Expert Group.)
  • png (Protable Network Graphics.)
  • tiff, tif (Tag(ged) Image File (Format).)
  • ras, sr (Sun Raster).
  • pbm, pgm, ppm (Portable Image Format.)
  • webp.

The image file is loaded into the program and converted into RGB, (internally BGR) format or RGBA (internally BGRA) if an alpha channel is available in the image.

Note

For supporting an image filetype the required library need to be installed except for:

  • bmp, dib (bitmap image file.)
  • pbm, pgm, ppm (Portable Image Format.)
  • ras, sr (Sun Raster).

Which are always supported.

Load images files

You can load an image file to process it into Edip by clicking on the Open button in the buttonbar,

through the menu item Files ‣ Open file or by hitting the shortcut Ctrl + O.

You can start the program with am image file path as argument:

$ edip image_filepath

You can open an recent image file by using the menu item Files ‣ Recent files.

Saving image files

You can save an image file by pressing the button Save in the button bar,

trough the menu item Files ‣ Save file or by hitting the shortcut Ctrl + S.

Then you can set the output size of the image which default to the originally image size.

And setting some options in relatinship to the format if available.

Image file format saving options

png image file saving options

  • Compression: from level from 0 to 9. A higher value means a smaller size and longer compression time. Default value is 3.

  • Strategy:

    • Default.
    • Filtered.
    • Huffman only.
    • RLE.
    • Fixed.

  • Bilevel:

    You can only store an image as bilevel if the image is a binary (black and white) image.

    Otherwise the result will be undefined.

jpeg image file saving options

  • Quality: it can be a quality from 0 to 100 (the higher is the better). Default value is 95.
  • Features:
    • Progressiv (disabled per default).
    • Optimize (disabled per default).
  • RST Restart: JPEG restart interval, 0 - 65535, default is 0 - no restart.
  • LUMA quality: Separate luma quality level, 0 - 100, default is 0 - don’t use.
  • CHROMA quality: Separate chroma quality level, 0 - 100, default is 0 - don’t use.

xpm image file saving options

  • Binary: For PPM, PGM, or PBM, it can be a binary format flag, 0 or 1. Default value is 1.

webp image file saving options

  • Quality: For WEBP, it can be a quality from 1 to 100 (the higher is the better). By default and for quality above 100 the lossless compression is used.