Histogram of u16 image

[Gurdie]

Hello!

I am trying to use the gray level intensities of u16 images. However, the functions histogram or light meter do not work with this image type. Does anybody know how I can solve this problem? I cannot convert the images to u8, because I may not loose data.

Thanks in advance!

[ninlmartijn]

Dear Gurdie,

thank you so much for your post on our webforum. Which version of the Vision Development Module are you using? I noticed that with the version I have (2009) the IMAQ histogram function supports U16 pictures. I came across some documentation that this was different in the past.

Best regards,

[muks]

I can confirm that you can do this in 8.0 as well.

[Gurdie]

Thanks for your answer. I am using version 8.6, so maybe I will upgrade it soon. In the meantime I worked around the problem by using the array data of the images directly.

[muks]

I am guessing that the image is .tiff and not png right?

[Gurdie]

No, it is png files.

[muks]

Can you post a image?

[ninlmartijn]

Hello Gurdie,

please verify in the Labview help if your version supports U16 ; I'm not completely positive about it, but I think it shouldn't be a problem. I notice a problem with a .PNG file. So maybe it is best to use .TIFF files.

Best regards,

[muks]

I am using lv 8.0