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Software to calculate area?

What is good a software to calculate the area of the leaf in the picture?

Update:

Suppose that baseline is h=361px, w=472px ,(127mm x 166mm), resolution, 72dpi

Next time I will scan a leaf with a ruler on the its side.

Attachment image

1 Answer

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  • ?
    Lv 5
    1 month ago

    Whatever you do you would first have to define the size of the leaf. Is your picture 4x5 or 17X22.  

    Without a baseline to the size of the leaf it is impossible to determine the "area"

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