MATLAB Answers

specific image stretching to chosen size

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Neil Rooze
Neil Rooze on 12 Mar 2020
Answered: Pranjal Kaura on 30 Jul 2021
How do i strech the 4th image so that only the RGB part is 300 x 300. i want the black bit deleted.
Neil Rooze
Neil Rooze on 13 Mar 2020
The last picture i want to stretch it like in the picture below. so it is a perfect square. (the read arrows are the stretching direction until it reaches the marked square)
thank you.

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Answers (1)

Pranjal Kaura
Pranjal Kaura on 30 Jul 2021
Hey Neil,
It is my understanding that you want to rescale(stretch) the 4th image such that only a selected portion (RGB part of the image) is displayed on the predefined axis.
A possible workaround could be:
  • Accessing the 4th location in the plot by using the subplot function. For your example you can use "subplot(1, 4, 4)" to access the 4th location.
  • Rescaling the image by changing the 'Xdata' and 'Ydata' property of the 'imshow' function.
  • Use the 'imcrop' function to crop out the required part of the image.

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