jacinle.image.codecs

Functions

imdecode(data, *[, require_chl3, require_alpha])	Decode images in common formats (jpg, png, etc.).
jpeg_encode(img[, quality])	Encode the image with JPEG encoder.
png_encode(input[, compress_level])	Encode the image with PNG encoder.

Functions

imdecode(data, *, require_chl3=True, require_alpha=False)

Decode images in common formats (jpg, png, etc.).

Parameters:

• data (bytes) – encoded image data

• require_chl3 – whether to convert gray image to 3-channel BGR image

• require_alpha – whether to add alpha channel to BGR image

Returns: uint8 color image array

jpeg_encode(img, quality=90)

Encode the image with JPEG encoder.

Parameters:

• img (numpy.ndarray) – uint8 color image array

• quality (int) – quality for JPEG compression

Returns bytes: encoded image data

png_encode(input, compress_level=3)

Encode the image with PNG encoder.

Parameters:

• img (numpy.ndarray) – uint8 color image array

• quality (int) – quality for JPEG compression

Returns bytes: encoded image data