how to extract the particular color from image

[ramya850]

I have an image containing the marks . I want to remove the blue color and background colors.

Extract only the marks which are in red. I used the color threshold function to do this.

But is showing an error of incompatible image type.

Can you please find the fault in my code?

suggest some other ideas to do this if the above logic is wrong.

[ricky10116_real]

Hi ramya850,

You should be careful of the image type you choose.

Thanks

Ricky

[ramya850]

Is it in the Color threshold function?

Can you please share the VI?

[Vu_Anh]

You can try grayscale U8

[ramya850]

thank you