adafruit_imageload

Load pixel values (indices or colors) into a bitmap and colors into a palette.

  • Author(s): Scott Shawcroft
adafruit_imageload.load(file_or_filename, *, bitmap=None, palette=None)

Load pixel values (indices or colors) into a bitmap and colors into a palette.

bitmap is the desired type. It must take width, height and color_depth in the constructor. It must also have a _load_row method to load a row’s worth of pixel data.

palette is the desired pallete type. The constructor should take the number of colors and support assignment to indices via [].

adafruit_imageload.bmp

Load pixel values (indices or colors) into a bitmap and colors into a palette from a BMP file.

  • Author(s): Scott Shawcroft
adafruit_imageload.bmp.load(file, *, bitmap=None, palette=None)

Loads a bmp image from the open file.

Returns tuple of bitmap object and palette object.

Parameters:
  • bitmap (object) – Type to store bitmap data. Must have API similar to displayio.Bitmap. Will be skipped if None
  • palette (object) – Type to store the palette. Must have API similar to displayio.Palette. Will be skipped if None

adafruit_imageload.bmp.indexed

Load pixel values (indices or colors) into a bitmap and colors into a palette from an indexed BMP.

  • Author(s): Scott Shawcroft
adafruit_imageload.bmp.indexed.decode_rle(bitmap, file, compression, y_range, width)

Helper to decode RLE images

adafruit_imageload.bmp.indexed.load(file, width, height, data_start, colors, color_depth, compression, *, bitmap=None, palette=None)

Loads indexed bitmap data into bitmap and palette objects.

Parameters:
  • file (file) – The open bmp file
  • width (int) – Image width in pixels
  • height (int) – Image height in pixels
  • data_start (int) – Byte location where the data starts (after headers)
  • colors (int) – Number of distinct colors in the image
  • color_depth (int) – Number of bits used to store a value
  • compression (int) – 0 - none, 1 - 8bit RLE, 2 - 4bit RLE