[Scilab-users] scilab and tif-files

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der_Phil der_Phil
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[Scilab-users] scilab and tif-files

Dear experts,

I do have a tif-file....in fact: lot's of them and of different size.

Pixel values are: 
- red
- green
- white
- black

Now, I want to convert these files in Black/white images, such as:

- red pixels --> black
- green pixels --> white
- black pixels --> black
- white pixels --> black

in other words:    Only the green pixels are of interest.

Now, as I use IPCV:

- imread()...does not handle tif-files correctly
--> it does read the files, but the output is a boolean-matrix......that doesn't help

- tifread()...does only handle images with size 1024x1024 ... doesn't help

Is there a way to read TIF-files into Scilab and keep the R-G-B-channels?


Thank you,
Philipp





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Tan Chin Luh Tan Chin Luh
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Re: scilab and tif-files

Hi, 

I remembered I was having some issue on reading the tiff file which was trying to read in different bits per pixels such as 12 bits (for a type of CCD camera) , that's why created the tifread for reference as I believe it there would be much more different standard of images/data which are not covered by imread. (for e.g. I just came across YUV video which need to be read by Scilab basic IO)

As for standard RGB image (8-bits per channel), it should be fine, you might want to send a sample (upload somewhere) and let us have a look.

Thanks.

rgds,
CL



---- On Fri, 10 Jul 2020 17:52:14 +0800 P M <[hidden email]> wrote ----

Dear experts,

I do have a tif-file....in fact: lot's of them and of different size.

Pixel values are: 
- red
- green
- white
- black

Now, I want to convert these files in Black/white images, such as:

- red pixels --> black
- green pixels --> white
- black pixels --> black
- white pixels --> black

in other words:    Only the green pixels are of interest.

Now, as I use IPCV:

- imread()...does not handle tif-files correctly

--> it does read the files, but the output is a boolean-matrix......that doesn't help

- tifread()...does only handle images with size 1024x1024 ... doesn't help

Is there a way to read TIF-files into Scilab and keep the R-G-B-channels?


Thank you,
Philipp




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