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How to calculate the area of an input image?

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Mara Pereira
Mara Pereira il 21 Giu 2020
Commentato: Image Analyst il 28 Giu 2020
How can I calculate the area of an input image with .jpg extension? If someone could explain please, it´s for a school project. And its suposed to be done using a scanner.
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KSSV
KSSV il 21 Giu 2020
What you have in image? How you can calculate the area of image? You want to find the dimensions of an image?
Mara Pereira
Mara Pereira il 21 Giu 2020
Modificato: Mara Pereira il 21 Giu 2020
It will be this image, for example.
It is to calculate the area of the green part.

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Image Analyst
Image Analyst il 21 Giu 2020
  1. Use imsplit() to get the red, green, and blue channel.
  2. The leaf will be dark in the blue channel. Threshold the blue channel to get a mask = blueChannel < 200.
  3. Call bwarea() on the resulting mask.

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