Why jpg files crash the OpenCASA

[Yuansheng Tan]

Hi All,

Did anyone figure out why  opening jpg files crashes the OpenCASA in Morhpometry analysis?  I can not get any file working other than the sample file shipped with OpenCASA.

Tony

[Carlos Alquezar]

Hi Tony,

I do not know why this is happening. Could you send a sample image to make a test?

[Carlos Alquezar]

I have made some tests and maybe the reason why the software is not working with your jpg images is that your images are in grayscale (8-bit format).

Just to test this hypothesis, try this:

1. Select one of your images and load it to ImageJ.
2. Go to Image -> Type and select "RGB Color"
3. Save image (File -> Save As.., and select JPG or PNG)

Now open OpenCASA and try to analyze this saved image. If it works, we have found the problem.

Please, let me know if you try these steps.

Carlos

[Yuansheng Tan]

Carlos,

You are right.  The file format is required to be in RGB format.

Thanks!

Tony

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[Carlos Alquezar]

You are welcome.

Thank you for sharing the problem, it makes it easier to improve the software :)

For the moment, if it is not a big incovenient, try to work with rgb images, and I will try to adapt the code to not depend only in this format.

Best,

Carlos

El martes, 19 de noviembre de 2019, 7:26:56 (UTC+1), Tony Tan escribió:

Carlos,

You are right.  The file format is required to be in RGB format.

Thanks!

Tony

On Mon, Nov 18, 2019 at 4:34 PM Carlos Alquezar <calqu...@gmail.com> wrote:

I have made some tests and maybe the reason why the software is not working with your jpg images is that your images are in grayscale (8-bit format).

Just to test this hypothesis, try this:

1. Select one of your images and load it to ImageJ.
2. Go to Image -> Type and select "RGB Color"
3. Save image (File -> Save As.., and select JPG or PNG)

Now open OpenCASA and try to analyze this saved image. If it works, we have found the problem.

Please, let me know if you try these steps.

Carlos

El martes, 19 de noviembre de 2019, 1:13:21 (UTC+1), Carlos Alquezar escribió:

Hi Tony,

I do not know why this is happening. Could you send a sample image to make a test?

El martes, 19 de noviembre de 2019, 1:09:51 (UTC+1), Tony Tan escribió:

Hi All,

Did anyone figure out why  opening jpg files crashes the OpenCASA in Morhpometry analysis?  I can not get any file working other than the sample file shipped with OpenCASA.

Tony

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