116 lines
3.0 KiB
C++
116 lines
3.0 KiB
C++
// code by HJ Hornbeck, based on code copyright David Hilvert
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/* This file is part of the Anti-Lamenessing Engine.
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The Anti-Lamenessing Engine is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 3 of the License,
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or (at your option) any later version.
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The Anti-Lamenessing Engine is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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Public License for more details.
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You should have received a copy of the GNU General Public License
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along with the Anti-Lamenessing Engine; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __nikon_d50_h__
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#define __nikon_d50_h__
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#include "../d2.h"
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#include "../d2/render/psf/psf.h"
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/*
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* Device module for the Nikon D50.
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*
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* Much like the Canon, alignment works best with RAW input created by
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* dcraw, with the -D/-d and -4 flags enabled. If you get bayer patterns
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* in the output image, and have Irani-Peleg iteration on, try swapping
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* the inputs from RAW to processed (but lossless) and ditch the device
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* setting.
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*
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*/
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class nikon_d50 {
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public:
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/*
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* Linear colorspace PSF
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*
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* This PSF isn't an exact match, instead balancing quality, speed, and
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* robustness. While some blur will probably remain, at scale factors
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* less than 3 it's easily corrected for in the GIMP (or similar).
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* Larger diameters perform more sharpening, but run time increases
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* by the square of the diameter. Finally, the PSF should vary by
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* lens and focal length, but this mild one works relatively well
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* across a wide range of lenses.
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*/
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static d2::psf *lpsf() {
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return d2::psf_parse::get( 1, "circle=1.3^circle=1.3" );
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}
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/*
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* Non-linear colorspace PSF
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*
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* The linear PSF works perfectly with RAW input, and even performs
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* well if I substitute images with non-linear colourspace. I
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* haven't found a need for this, yet.
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*/
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static d2::psf *nlpsf() {
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return NULL;
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}
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/*
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* Exposure
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*
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* The defaults for the Canon work well enough.
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*/
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class exposure : public d2::exposure_default {
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d2::pixel linearize(d2::pixel input) const {
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return input * get_multiplier();
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}
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d2::pixel unlinearize(d2::pixel input) const {
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return input / get_multiplier();
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}
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};
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/*
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* View Angle
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*
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* Copy/Paste from the Canon again.
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*/
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static ale_pos view_angle() {
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fprintf(stderr, "\n\n*** Error: tried to obtain view angle for a sensor device. ***\n\n");
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exit(1);
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// return 30;
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}
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/*
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* Bayer pattern
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*
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* Adding this function because this info should be here, instead
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* of hard-wired into the argument parsing code.
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*/
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static unsigned int bayer() {
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return IMAGE_BAYER_BGRG;
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}
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};
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#undef LPSF_ROWS
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#undef LPSF_COLS
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#undef NLPSF_ROWS
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#undef NLPSF_COLS
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#endif
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