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Read and write Netpbm files

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Project description

Netpbmfile is a Python library to read and write files in the Netpbm format as specified at http://netpbm.sourceforge.net/doc/.

The following Netpbm formats are supported: PBM (bi-level), PGM (grayscale), PPM (color), PAM (arbitrary), XV thumbnail (RGB332, read-only). Also reads Portable FloatMap formats: PF (float32 RGB) and Pf (float32 grayscale).

No gamma correction is performed. Only one image per file is supported.

Author:

Christoph Gohlke

Organization:

Laboratory for Fluorescence Dynamics, University of California, Irvine

Version:

2019.1.1

Requirements

Revisions

2019.1.1

Update copyright year.

2018.10.18

Move netpbmfile.py into netpbmfile package.

2018.02.18

Support Portable FloatMaps. Style fixes.

2016.02.24

Use ‘fromdata’ classmethod to initialize from data. Support ‘with’ statement. Scale RGB images to maxval for display. Make keyword arguments explicit. Support numpy 1.10.

Examples

>>> im1 = numpy.array([[0, 1], [65534, 65535]], dtype='uint16')
>>> imsave('_tmp.pgm', im1)
>>> im2 = imread('_tmp.pgm')
>>> assert numpy.all(im1 == im2)

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