CODEWITHSUNDEEP
pythonmatplotlib
HRD1997BFBE
HRD1997BFBE

Reputation: 123

How to plot a limited region of an image?

If I have an image in the form of [556,556] PX and I would like to plot a certain range of them so say:

Image Size: [556,556]

Plot -> XPixels [224,300] YPixels [224,300]

This was my attempt and it does sort-of what I need it to do, I have the correct pixels selected but unfortunately this only labels the given range and doesn't actually plot the range. Understandably the next part of this would be to plot the new range given the image but how would I go about this?

openDicom = pdi.dcmread(filePath)
plt.imshow(openDicom.pixel_array, cmap=plt.cm.Spectral, origin = 'lower',interpolation = 'nearest')
plt.xticks([308,341])
plt.yticks([234,271])

Please see my "Amazing Drawing" for further reference. Thanks!

enter image description here

Upvotes: 0

Views: 1557

Answers (1)

ai2ys
ai2ys

Reputation: 1571

Just pass the array sub area to imshow.

plt.imshow(image[y_start:y_end, x_start:x_end])

Upvotes: 1

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