Error with regionprops, Expected input number 1, PROPERTIES, to match one of these values:

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Alvar Fuente Castrillo 2021-10-19

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1567008-error-with-regionprops-expected-input-number-1-properties-to-match-one-of-these-values

关闭： Matt J 2021-10-20

Hello, i'm trying to get the MinorAxisLength from a serie of images via regionprops function with a for loop and i'm getting a bunch of errors that i dont know how to solve.

Section of my code:

for z = 1: 4

Image_stats(z).Bloque3 = regionprops (Image_thr(z).Bloque2, 'MinorAxisLenght');

end

This are the errors i get from Matlab:

Error using regionprops>getPropsFromInput (line 1447)

Expected input number 1, PROPERTIES, to match one of these values:

'LabelName', 'Area', ...

The input, 'MinorAxisLenght', did not match any of the valid values.

Error in regionprops>ParseInputs (line 1412)

reqStats = getPropsFromInput(startIdxForProp, ...

Error in regionprops (line 248)

[I,requestedStats,officialStats] = ParseInputs(imageSize, argOffset, args{:});

Error in script_detectar_desgaste (line 53)

Image_stats(z).Bloque3 = regionprops (Image_thr(z).Bloque2, 'MinorAxisLenght');

I have to say that before trying to get the values this way, i used the following code and worked, but i wanted to make it more efficient with a loop:

Image_stats1 = regionprops (Image_thr1, 'MinorAxisLength');

Image_stats2 = regionprops (Image_thr2, 'MinorAxisLength');

Image_stats3 = regionprops (Image_thr3, 'MinorAxisLength');

Image_stats4 = regionprops (Image_thr4, 'MinorAxisLength');

Thanks for reading and sorry if my english is a little bad. Grettings from Spain ;)