Re: anomalous (?) display

Posted by Gabriel Lapointe on Feb 09, 2009; 8:20pm
URL: http://imagej.273.s1.nabble.com/Tudor-DICOM-compressed-images-tp3693776p3693783.html

In the Brightness and contrast dialog ther is a "set" button where you
can enter the values manually.

Hope this help,

Gabriel

Hugo A. M. Torres wrote:

> Thanks Gabriel,
>
> I will try to do the operation before the conversion, now if I had to do
> it later, how would I ensure the contrast is the same? Should I worry
> only about the slope and position of the line displayed over the
> histogram  in the b/c dialogue box? Sorry if this is basic, I am new at
> this.
>
> Hugo
>
> On Mon, 2009-02-09 at 12:55 -0500, Gabriel Lapointe wrote:
>
>  
>> Hello Hugo,
>> When you convert a 16 bit image to 8bit ImageJ take use the minimum and
>> maximum displayed as the limits for the scaling down. So you either have
>> to adjust the brightness and contrast before the conversion (make sure
>> it is the same for all sample) or avoid the conversion and substract the
>> 16 bit image directly. As long as both image are the same depth (8 or 16
>> bit) it should work.
>>
>> Gabriel
>>
>>    
>
>