tone-mapping (pcond and ra_tiff)

Dear all,

I would like to understand how ra_tiff and pcond work.

I'm using pcond specifying contrast (-d) and max luminance (-u) of my
display. Then I transform my picture (.pic) with ra_tiff to obtain a tiff
picture.

Does somebody know which function is applied in ra_tiff to transform a .pic
in a .tif ? It seems that my picture in .tif has a mean luminance greater
than my .pic

Thank you in advance for your help,

Coralie

···

----------------------------------------------------------------------------
-------------

Coralie Cauwerts

FNRS Research Fellow | Ir Architect

Universite catholique de Louvain

Belgium

The pcond command does not maintain the original values of the image,
but rather adjusts them according to a visual interpretation of what the
image should look like when printed or displayed on the screen. If you
need to do exposure adjustment but preserve original data try pfilt.

Dear all,

I would like to understand how ra_tiff and pcond work.

I'm using pcond specifying contrast (-d) and max luminance (-u) of my
display. Then I transform my picture (.pic) with ra_tiff to obtain a
tiff picture.

Does somebody know which function is applied in ra_tiff to transform a
.pic in a .tif ? It seems that my picture in .tif has a mean luminance
greater than my .pic

···

From: Coralie Cauwerts

____________________________________________________________
Electronic mail messages entering and leaving Arup business
systems are scanned for acceptability of content and viruses