plt.imshow显示CT/MRI图像
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2022-05-20 22:01:39
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先看一下plt.imshow
help(plt.imshow)
下面只是显示此博客关注的关键部分,完整的可以自己运行命令查看。
imshow(X, cmap=None, norm=None, aspect=None, interpolation=None, alpha=None, vmin=None, vmax=None, origin=None, extent=None, shape=None, filternorm=1, filterrad=4.0, imlim=None, resample=None, url=None, *, data=None, **kwargs)
Display an image, i.e. data on a 2D regular raster
Parameters
----------
X : array-like or PIL image
The image data. Supported array shapes are:
- (M, N): an image with scalar data. The data is visualized
using a colormap.
- (M, N, 3): an image with RGB values (float or uint8).
- (M, N, 4): an image with RGBA values (float or uint8), i.e.
including transparency.
The RGB(A) values should be in the range [0 .. 1] for floats or
[0 .. 255] for integers. Out-of-range values will be clipped to
these bounds.
cmap : str or `~matplotlib.colors.Colormap`, optional
A Colormap instance or registered colormap name. The colormap
maps scalar data to colors. It is ignored for RGB(A) data.
Defaults to :rc:`image.cmap`.
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Returns
-------
image : `~matplotlib.image.AxesImage`
注意,一般显示医疗影像的时候,我们读取的是其中的一个切片,所以使用的是,而千万不要自作聪明,将扩展成这种形式。具体原因:
The RGB(A) values should be in the range [0 … 1] for floats or
[0 … 255] for integers. Out-of-range values will be clipped to
these bounds.
会对像素值进行自动裁剪的!!
dicom
plt.imshow(filedata,cmap=plt.cm.bone)
有关cmap=plt.cm.bone,
参考https://matplotlib.org/3.1.0/gallery/color/colormap_reference.html?highlight=bone
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