matplotlib.pyplot.imsave¶
-
matplotlib.pyplot.imsave(fname, arr, **kwargs)[source]¶ Save an array as an image file.
Parameters: - fnamestr or path-like or file-like
A path or a file-like object to store the image in. If format is not set, then the output format is inferred from the extension of fname, if any, and from
rcParams["savefig.format"](default:'png') otherwise. If format is set, it determines the output format.- arrarray-like
The image data. The shape can be one of MxN (luminance), MxNx3 (RGB) or MxNx4 (RGBA).
- vmin, vmaxfloat, optional
vmin and vmax set the color scaling for the image by fixing the values that map to the colormap color limits. If either vmin or vmax is None, that limit is determined from the arr min/max value.
- cmapstr or
Colormap, default:rcParams["image.cmap"](default:'viridis') A Colormap instance or registered colormap name. The colormap maps scalar data to colors. It is ignored for RGB(A) data.
- formatstr, optional
The file format, e.g. 'png', 'pdf', 'svg', ... The behavior when this is unset is documented under fname.
- origin{'upper', 'lower'}, default:
rcParams["image.origin"](default:'upper') Indicates whether the
(0, 0)index of the array is in the upper left or lower left corner of the axes.- dpifloat
The DPI to store in the metadata of the file. This does not affect the resolution of the output image. Depending on file format, this may be rounded to the nearest integer.
- metadatadict, optional
Metadata in the image file. The supported keys depend on the output format, see the documentation of the respective backends for more information.
- pil_kwargsdict, optional
Keyword arguments passed to
PIL.Image.Image.save. If the 'pnginfo' key is present, it completely overrides metadata, including the default 'Software' key.