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 TIFF 16 Bit grayscale		  New Topic  Reply to Topic
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carlonarcisi

Italy
7 Posts
Posted - Oct 28 2015 :  12:40:50  Show Profile  Reply
Hello guys
I've TIFF images medical, are in 16-bit grayscale.
ImageEn can read it but it's all black !
Is there a way to make it visible ?
here attach file tif
thanks
carlo


attach/carlonarcisi/20151028124031_00000001.zip
2397.61 KB

klausdoege

Germany
389 Posts
Posted - Oct 28 2015 :  15:03:54  Show Profile  Reply
Hi Carlo,
this Picture it's not only Black.
It's only verry black.
I can see this with Imageen.

Klaus
www.klausdoege.de
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carlonarcisi

Italy
7 Posts
Posted - Oct 28 2015 :  15:21:01  Show Profile  Reply
hi Klaus
in attach the same image grayscale 8bit


attach/carlonarcisi/2015102815192_00000001_8Bit.zip
761.51 KB

i've used ImageJ to open 16Bit GrayScale image, convert it to 8 Bit .. and finally save it at 8bit grayscale (the file in attach)

https://it.wikipedia.org/wiki/ImageJ

ideas ?

carlo
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klausdoege

Germany
389 Posts
Posted - Oct 29 2015 :  04:47:56  Show Profile  Reply
Here is your first image, open with Imageen
and save with imageen.
I take my own prgram "DigiFoto"
But you must change the white value see histogram.
Your picture has only value's between 0..18
The color value's from 20 to 255 are = 0(black)
I have set the white value on 20 and you can see the result in the attached file.

attach/klausdoege/201510294477_00000001x.zip
103.74 KB

Klaus
www.klausdoege.de
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carlonarcisi

Italy
7 Posts
Posted - Oct 29 2015 :  05:10:29  Show Profile  Reply
Klaus ! thanks for your time !
Nigel has already given me the bad news ...

The images I'm trying to open a 16-bit TIFF are used in the medical environment.
At the time apart from the program written in java (ImageJ) , I can read the image TIFF 16Bit with a demo of LeadTools ..
But I'm not going to buy LeadTools !
Thanks a lot
carlo
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klausdoege

Germany
389 Posts
Posted - Oct 29 2015 :  05:34:41  Show Profile  Reply
Hello Carlo,
you can use my Tool "DigiFoto" to read or work with picture.
It's how photoshop but freeware.
http://www.klausdoege.de/DigiFoto/

Klaus
www.klausdoege.de
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xequte

39099 Posts
Posted - Nov 10 2015 :  15:09:35  Show Profile  Reply
Hi

In our analysis ImageEn correctly displays this image, which contains an invisible range of values.

To show the image you should adjust the visible range using TImageEnView.IEBitmap.BlackValue and WhiteValue. This is done automatically if you call AutoCalcBWValues():

imageenview1.LegacyBitmap := false;
imageenview1.IO.NativePixelFormat := true;
imageenview1.io.loadfromfile('00000001.TIF');
imageenview1.IEBitmap.AutoCalcBWValues;


Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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