[Scilab-users] Fwd: Re: scilab and tif-files

[P M]

Hi Antoine,

This does help indeed...

with    tiff_get_image_prop()     I get the correct RGB-image from the
TIf-file.

Thank you very much.

Best Regards,
Philipp






Am Mo., 13. Juli 2020 um 08:25 Uhr schrieb Antoine Monmayrant <
antoine.monmayrant at laas.fr>:

> Houps,
>
> I mailed Philipp directly, so here is a copy of my answer and available
> script to read a subset of TIFF.
> It might be useful for some of you...
>
> Antoine
>
>
> -------- Forwarded Message --------
> Subject: Re: [Scilab-users] scilab and tif-files
> Date: Sun, 12 Jul 2020 20:39:20 +0200
> From: Antoine Monmayrant <antoine.monmayrant at laas.fr>
> <antoine.monmayrant at laas.fr>
> To: P M <p.muehlmann at gmail.com> <p.muehlmann at gmail.com>
>
> Hello Philipp,
>
> I played a bit with tiff format a while ago (as none of the image
> processing toolboxes could be installed on my work computers).
> The long story short: one of our microscope is storing data in a format
> (*.ols) that is just tiff file with some metadata.
> I hacked a bit of the tiff specification to only support the subset of
> tiff used by this microscope.
> So it might not be exactly what you need, it depends on the tiff files you
> are using.
> But maybe it can help you design your own homemade solution.
>
> Cheers,
>
> Antoine
> On 10/07/2020 11:52, P M 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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