2011-03-04 1.5 Rafal Mantiuk
	* added pfsplotresponse script for plotting camera response curves
	* fixed the right range of values is used in Mitsunaga's algorithm. However this algoritm still seems to be broken. Use Robertson instead.
	* updated: manual page for pfshdrcalibrate

2011-02-15 Ivo Ihrke
	* fixed multiplier bug for raw data > 8bit
	  - use --bpp flag if you want to take adavantage of that
	    the program will assume 8 bit by default, even for raw files
	    like (.cr2 for Canon which, e.g., stores 14bit/pixel for
	    a 5D Mark II)
	* reorderd computations such that an HDR image is computed also
	  in the case of response curve estimation
	* Gaussian replaced by robust Gaussion (responses.cpp)
	  this fixes the saturation problems, the hacks to deal with that
	  have been removed (robertson.c applyResponse)
	* fixed infinite loop due to incorrect convergence estimate in
	  robertson02.cpp getResponse function
	* !! changed behavior of -g flag (Gaussian kernel size)
	     it is now a value relative to the [0-1] range
	     default value changed to 0.2

	* changed the weight function from Gaussian to composite
	  goals: - suppress noise on the dark end
	       - use bright intensity levels in a better way (higher SNR of these pixels)
	       - prevent use of bright saturated pixels
	       - do not zero bright saturated pixels

	  - noise behavior is much better than simple robust Gaussian,
	    the saturated pixels problem and color banding
	    do occur in a much less pronounced way
	* changed file format of response curve file, it now uses
	  scientific notation for floats (this improves precision,
	  especially for the weight function), the files can still be read
	  by older versions of pfstools

2008-10-02
	* added: pfsinme command

2008-08-21 1.4

	* fixed missing includes for gcc 4.3
	* updated: man pages for pfshdrcalibrate

2007-03-23
	* added Mitsunaga and Nayar's algorithm "Radiometric Self Calibration"

2006-09-13  Grzegorz Krawczyk  <krawczyk@mpi-sb.mpg.de>

	* fixed: insufficient number of exposure led to black (0-valued)
	areas in the HDR image; such areas are now replaced with minimum
	and maximum observed luminance
	
	* removed --fix-saturated

2006-09-05

	* added --fix-saturated
		
2006-08-25  Grzegorz Krawczyk  <krawczyk@mpi-sb.mpg.de>

	* checks for successful memory allocation

2006-08-23  PFSCalibration 1.3 

	* absolute calibration (in testing): luminance in output HDR
	images is in [cd/m2] units. expected relative error of measurement
	below 8%, see README file.
	
	* support for capturing HDR with varying aperture and ISO
	speeds

	* format of hdrgen script changed: added iso speed (affected are
	jpeg2hdrgen, dcraw2hdrgen, pfsinhdrgen)

	* jpeg2hdrgen: locale fix for gentoo (by Emmanuel Favre-Nicolin).      
		
	* fixed bug in configure script which lead to "illegal instruction" error

	* jpeg2hdrgen: precise identification of exposure times, sometimes
	were a bit off. Fix thanks to Georg Zotti
	<gzotti@cg.tuwien.ac.at>

	* dcraw2hdrgen: automatic generation of hdrgen script from camera
	raw files. Contribution thanks to Georg Zotti
	<gzotti@cg.tuwien.ac.at>.

	* support for calibration using camera RAW files; in connection
	with pfsindcraw in pfstools

2006-03-16  PFSCalibration 1.2
	
	* pfsinhdrgen: test for existance of image files.  Patch by Adam
	Buchbinder.
	
	* pfsinhdrgen: added -v|verbose option, default running mode is
	quiet.

	* pfshdrcalibrate: bugfix, test if at least one frame was read on
	input (prevents seg fault)
	
2005-11-10  PFSCalibration 1.1
	* configure.ac: looks for correct pfstools version using pkg-config
		
	* pfscat command removed, because it is now available in pfstools package
		
	* bug in jpeg2hdrgen: comma as decimal delimiter (locale settings)
	  caused division by zero.
	  Fix thanks to Emmanuel Favre-Nicolin <emmanuel@favre-nicolin.net>
	  
2005-10-04  PFSCalibration 1.0
	* initial release on source forge
