219 lines
9 KiB
C++
219 lines
9 KiB
C++
#include "igs_color_rgb_hls.h"
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namespace {
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void pixel_rgba_(const double red_in, const double gre_in, const double blu_in,
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double &red_out, double &gre_out, double &blu_out,
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const double hue_pivot, // 0.0 ...0...360...
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const double hue_scale, // 1.0 ...1...
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const double hue_shift, // 0.0 ...0...360...
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const double lig_pivot, // 0.0 ...0...1...
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const double lig_scale, // 1.0 ...1...
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const double lig_shift, // 0.0 ...0...1...
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const double sat_pivot, // 0.0 ...0...1...
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const double sat_scale, // 1.0 ...1...
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const double sat_shift, // 0.0 ...0...1...
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const bool cylindrical = true) {
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double hue, lig, sat;
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igs::color::rgb_to_hls(red_in, gre_in, blu_in, hue, lig, sat, cylindrical);
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if ((1.0 != hue_scale) || (0.0 != hue_shift)) {
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hue -= hue_pivot;
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while (hue < -180.0) {
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hue += 360.0;
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}
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while (180.0 <= hue) {
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hue -= 360.0;
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}
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hue *= hue_scale;
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hue += hue_pivot;
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hue += hue_shift;
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while (hue < 0.0) {
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hue += 360.0;
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}
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while (360.0 <= hue) {
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hue -= 360.0;
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}
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}
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if ((1.0 != lig_scale) || (0.0 != lig_shift)) {
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lig -= lig_pivot;
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lig *= lig_scale;
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lig += lig_pivot;
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lig += lig_shift;
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// lig = (lig < 0.0) ? 0.0 : ((1.0 < lig) ? 1.0 : lig);
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}
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if ((1.0 != sat_scale) || (0.0 != sat_shift)) {
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sat -= sat_pivot;
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sat *= sat_scale;
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sat += sat_pivot;
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sat += sat_shift;
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sat = (sat < 0.0) ? 0.0 : sat;
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// sat = (sat < 0.0) ? 0.0 : ((1.0 < sat) ? 1.0 : sat);
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}
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igs::color::hls_to_rgb(hue, lig, sat, red_out, gre_out, blu_out, cylindrical);
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}
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} // namespace
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//------------------------------------------------------------
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#include <limits> /* std::numeric_limits */
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#include "igs_ifx_common.h" /* igs::image::rgba */
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#include "igs_hls_adjust.h"
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namespace {
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/* raster逕ｻ蜒上↓繝弱う繧ｺ繧偵・縺帙ｋ*/
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void change_(float *image_array, const int height, const int width,
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const int channels,
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const float *ref, /* 豎ゅａ繧狗判蜒・out)縺ｨ蜷後§鬮倥＆縲∝ｹ・√メ繝｣繝ｳ繝阪Ν謨ｰ */
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const double hue_pivot, const double hue_scale,
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const double hue_shift, const double lig_pivot,
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const double lig_scale, const double lig_shift,
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const double sat_pivot, const double sat_scale,
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const double sat_shift, const bool add_blend_sw,
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const bool cylindrical = true) {
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// const int t_max = std::numeric_limits<IT>::max();
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// const double div_val = static_cast<double>(t_max);
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// const double mul_val = static_cast<double>(t_max) + 0.999999;
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const int pixsize = height * width;
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// const int r_max = std::numeric_limits<RT>::max();
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if (igs::image::rgba::siz == channels) {
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using namespace igs::image::rgba;
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for (int ii = 0; ii < pixsize; ++ii, image_array += channels) {
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/* 変化量初期値 */
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float refv = 1.f;
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/* 参照画像あればピクセル単位の画像変化量を得る */
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if (ref != nullptr) {
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refv *= (*ref);
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ref++; /* continue;縺ｮ蜑阪↓陦後≧縺薙→ */
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}
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/* 加算合成で、Alpha値ゼロならRGB値を計算する必要はない */
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if (add_blend_sw && (0.f == image_array[alp])) {
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continue;
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}
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/* 加算合成でなくAlpha合成の時は、
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Alpha値がゼロでもRGB値は存在する(してもよい) */
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/* pivot,scale,shiftによってRGB値を変化する */
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double rr, gg, bb;
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pixel_rgba_(image_array[red], image_array[gre], image_array[blu], rr, gg,
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bb, hue_pivot, hue_scale, hue_shift, lig_pivot, lig_scale,
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lig_shift, sat_pivot, sat_scale, sat_shift, cylindrical);
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/* 加算合成で、その値がMaxでなければ変化量に乗算 */
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if (add_blend_sw && (image_array[alp] < 1.f)) {
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refv *= image_array[alp];
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}
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/* ピクセル単位の変化量があれば、RGBを調整する */
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if ((ref != nullptr) || (add_blend_sw && (image_array[alp] < 1.f))) {
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rr = image_array[red] + (rr - image_array[red]) * refv;
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gg = image_array[gre] + (gg - image_array[gre]) * refv;
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bb = image_array[blu] + (bb - image_array[blu]) * refv;
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}
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/* 結果をRGBに戻す */
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image_array[red] = rr;
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image_array[gre] = gg;
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image_array[blu] = bb;
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}
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} else if (igs::image::rgb::siz == channels) {
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using namespace igs::image::rgb;
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for (int ii = 0; ii < pixsize; ++ii, image_array += channels) {
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float refv = 1.f;
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if (ref != nullptr) {
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refv *= (*ref);
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ref++;
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}
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// const IT *const ia = image_array;
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// const double rr1 = static_cast<double>(ia[red]) / div_val;
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// const double gg1 = static_cast<double>(ia[gre]) / div_val;
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// const double bb1 = static_cast<double>(ia[blu]) / div_val;
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double rr, gg, bb;
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pixel_rgba_(image_array[red], image_array[gre], image_array[blu], rr, gg,
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bb, hue_pivot, hue_scale, hue_shift, lig_pivot, lig_scale,
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lig_shift, sat_pivot, sat_scale, sat_shift, cylindrical);
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if (ref != nullptr) {
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rr = image_array[red] + (rr - image_array[red]) * refv;
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gg = image_array[gre] + (gg - image_array[gre]) * refv;
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bb = image_array[blu] + (bb - image_array[blu]) * refv;
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}
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image_array[red] = rr;
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image_array[gre] = gg;
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image_array[blu] = bb;
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}
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} else if (1 == channels) { /* grayscale */
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for (int ii = 0; ii < pixsize; ++ii, image_array += channels) {
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double refv = 1.f;
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if (ref != nullptr) {
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refv *= (*ref);
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ref++;
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}
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double li =
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(*image_array - lig_pivot) * lig_scale + lig_pivot + lig_shift;
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// li = (li < 0.0) ? 0.0 : ((1.0 < li) ? 1.0 : li);
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if (ref != nullptr) {
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li = *image_array + (li - *image_array) * refv;
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}
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*image_array = li;
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}
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}
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}
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} // namespace
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#include <stdexcept> /* std::domain_error */
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void igs::hls_adjust::change(
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float *image_array, const int height, const int width, const int channels,
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const float *ref, /* 豎ゅａ繧狗判蜒上→蜷後§鬮倥∝ｹ・…hannels謨ｰ */
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const double hue_pivot, const double hue_scale, const double hue_shift,
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const double lig_pivot, const double lig_scale, const double lig_shift,
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const double sat_pivot, const double sat_scale, const double sat_shift,
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const bool add_blend_sw, const bool cylindrical) {
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if ((1.0 == hue_scale) && (0.0 == hue_shift) && (1.0 == lig_scale) &&
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(0.0 == lig_shift) && (1.0 == sat_scale) && (0.0 == sat_shift)) {
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return;
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}
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if ((igs::image::rgba::siz != channels) &&
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(igs::image::rgb::siz != channels) && (1 != channels) /* grayscale */
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) {
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throw std::domain_error("Bad channels,Not rgba/rgb/grayscale");
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}
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change_(image_array, height, width, channels, ref, hue_pivot, hue_scale,
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hue_shift, lig_pivot, lig_scale, lig_shift, sat_pivot, sat_scale,
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sat_shift, add_blend_sw, cylindrical);
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/* rgb(a)画像にhls(a)でドットノイズを加える */
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/*
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if ((std::numeric_limits<unsigned char>::digits == bits) &&
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((std::numeric_limits<unsigned char>::digits == ref_bits) ||
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(0 == ref_bits))) {
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change_template_(image_array, height, width, channels, ref, ref_mode,
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hue_pivot, hue_scale, hue_shift, lig_pivot, lig_scale,
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lig_shift, sat_pivot, sat_scale, sat_shift, add_blend_sw);
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} else if ((std::numeric_limits<unsigned short>::digits == bits) &&
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((std::numeric_limits<unsigned char>::digits == ref_bits) ||
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(0 == ref_bits))) {
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change_template_(reinterpret_cast<unsigned short *>(image_array), height,
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width, channels, ref, ref_mode, hue_pivot, hue_scale,
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hue_shift, lig_pivot, lig_scale, lig_shift, sat_pivot,
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sat_scale, sat_shift, add_blend_sw);
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} else if ((std::numeric_limits<unsigned short>::digits == bits) &&
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(std::numeric_limits<unsigned short>::digits == ref_bits)) {
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change_template_(reinterpret_cast<unsigned short *>(image_array), height,
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width, channels,
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reinterpret_cast<const unsigned short *>(ref), ref_mode,
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hue_pivot, hue_scale, hue_shift, lig_pivot, lig_scale,
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lig_shift, sat_pivot, sat_scale, sat_shift, add_blend_sw);
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} else if ((std::numeric_limits<unsigned char>::digits == bits) &&
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(std::numeric_limits<unsigned short>::digits == ref_bits)) {
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change_template_(image_array, height, width, channels,
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reinterpret_cast<const unsigned short *>(ref), ref_mode,
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hue_pivot, hue_scale, hue_shift, lig_pivot, lig_scale,
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lig_shift, sat_pivot, sat_scale, sat_shift, add_blend_sw);
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} else {
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throw std::domain_error("Bad bits,Not uchar/ushort");
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}
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*/
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}
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