Compare two images of any crop of different growth stages ?

If the background color is uniform for all images, and the only difference is the growth level or stage, you can create a region that contains the area other than the background, and then get the pixel count of the region's area.
This should give you an indication about the area of all elements in the image other than the background. Now, you can compare the pixel counts between the images, and you can consider the images with larger pixel count values have larger growth stage.
Note that you can use LEADTOOLS .Net classes to accomplish the above approach by calling the RasterImage.AddColorToRegion method and pass to it the background color with RasterRegionCombineMode.SetNot parameter. This should exclude the background color from the region. After this, you can get the region's pixel count using the RasterImage.CalculateRegionArea method. You can find more details here:
https://www.leadtools.com/support/forum/posts/m14289-Image-Comparison#post14454

Note that this is general information and the details might be changed or modified depending on the images that you use.

Disclaimer: I am an employee of this library

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Maen Badwan10y ago
If the background color is uniform for all images, and the only difference is the growth level or stage, you can create a region that contains the area other than the background, and then get the pixel count of the region's area.
This should give you an indication about the area of all elements in the image other than the background. Now, you can compare the pixel counts between the images, and you can consider the images with larger pixel count values have larger growth stage.
Note that you can use LEADTOOLS .Net classes to accomplish the above approach by calling the RasterImage.AddColorToRegion method and pass to it the background color with RasterRegionCombineMode.SetNot parameter. This should exclude the background color from the region. After this, you can get the region's pixel count using the RasterImage.CalculateRegionArea method. You can find more details here:
https://www.leadtools.com/support/forum/posts/m14289-Image-Comparison#post14454

Note that this is general information and the details might be changed or modified depending on the images that you use.

Disclaimer: I am an employee of this library
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