316 lines
10 KiB
C++
316 lines
10 KiB
C++
#include <stdexcept> /* std::domain_error */
|
||
#include <limits> /* std::numeric_limits */
|
||
#include "igs_color_rgb_hsv.h"
|
||
namespace
|
||
{
|
||
void pixel_rgba_(
|
||
const double red_in, const double gre_in, const double blu_in, const double alp_in, const double hue_noise // -0.5...0.5
|
||
,
|
||
const double sat_noise, const double val_noise // -0.5...0.5
|
||
,
|
||
const double alp_noise, double &red_out, double &gre_out, double &blu_out, double &alp_out)
|
||
{
|
||
double hue, sat, val, alp;
|
||
igs::color::rgb_to_hsv(red_in, gre_in, blu_in, hue, sat, val);
|
||
alp = alp_in;
|
||
|
||
if (0.0 != hue_noise) {
|
||
hue += 360.0 * hue_noise;
|
||
while (hue < 0.0) {
|
||
hue += 360.0;
|
||
}
|
||
while (360.0 <= hue) {
|
||
hue -= 360.0;
|
||
}
|
||
}
|
||
if (0.0 != sat_noise) {
|
||
sat += sat_noise;
|
||
if (sat < 0.0) {
|
||
sat = 0.0;
|
||
} else if (1.0 < sat) {
|
||
sat = 1.0;
|
||
}
|
||
}
|
||
if (0.0 != val_noise) {
|
||
val += val_noise;
|
||
if (val < 0.0) {
|
||
val = 0.0;
|
||
} else if (1.0 < val) {
|
||
val = 1.0;
|
||
}
|
||
}
|
||
if (0.0 != alp_noise) {
|
||
alp += alp_noise;
|
||
alp = (alp < 0.0) ? 0.0 : ((1.0 < alp) ? 1.0 : alp);
|
||
}
|
||
|
||
igs::color::hsv_to_rgb(hue, sat, val, red_out, gre_out, blu_out);
|
||
alp_out = alp;
|
||
}
|
||
}
|
||
//------------------------------------------------------------
|
||
namespace
|
||
{
|
||
class noise_ref_
|
||
{
|
||
public:
|
||
noise_ref_(
|
||
const unsigned char *array, const int height, const int width, const int channels, const int bits, const int xoffset, const int yoffset, const int zz);
|
||
double noise(
|
||
int xx // 0...width-1...
|
||
,
|
||
int yy // 0...height-1...
|
||
) const; // return range is 0...1
|
||
|
||
private:
|
||
const unsigned char *array_;
|
||
const int height_;
|
||
const int width_;
|
||
const int channels_;
|
||
const int bits_;
|
||
const double bmax_;
|
||
const int xoffset_;
|
||
const int yoffset_;
|
||
const int zz_;
|
||
|
||
/* copy constructorを無効化 */
|
||
noise_ref_(const noise_ref_ &);
|
||
|
||
/* 代入演算子を無効化 */
|
||
noise_ref_ &operator=(const noise_ref_ &);
|
||
};
|
||
noise_ref_::noise_ref_(
|
||
const unsigned char *array, const int height, const int width, const int channels, const int bits, const int xoffset, const int yoffset, const int zz) : array_(array), height_(height), width_(width), channels_(channels), bits_(bits), bmax_(static_cast<double>((1 << bits) - 1)), xoffset_(xoffset), yoffset_(yoffset), zz_(zz)
|
||
{
|
||
if (0 == array) {
|
||
throw std::domain_error("noise_ref_ no data");
|
||
}
|
||
if ((zz < 0) || (channels <= zz)) {
|
||
throw std::domain_error("noise_ref_ bad zz");
|
||
}
|
||
if (
|
||
(std::numeric_limits<unsigned char>::digits != this->bits_) &&
|
||
(std::numeric_limits<unsigned short>::digits != this->bits_)) {
|
||
throw std::domain_error("noise_ref_ bad bits");
|
||
}
|
||
}
|
||
double noise_ref_::noise(int xx, int yy) const
|
||
{
|
||
xx -= this->xoffset_;
|
||
yy -= this->yoffset_;
|
||
while (xx < 0) {
|
||
xx += this->width_;
|
||
}
|
||
while (this->width_ <= xx) {
|
||
xx -= this->width_;
|
||
}
|
||
while (yy < 0) {
|
||
yy += this->height_;
|
||
}
|
||
while (this->height_ <= yy) {
|
||
yy -= this->height_;
|
||
}
|
||
|
||
if (std::numeric_limits<unsigned char>::digits == this->bits_) {
|
||
return (*(
|
||
this->array_ +
|
||
this->channels_ * this->width_ * yy +
|
||
this->channels_ * xx +
|
||
this->zz_)) /
|
||
this->bmax_;
|
||
}
|
||
return (*(
|
||
reinterpret_cast<const unsigned short *>(this->array_) +
|
||
this->channels_ * this->width_ * yy +
|
||
this->channels_ * xx +
|
||
this->zz_)) /
|
||
this->bmax_;
|
||
}
|
||
}
|
||
//------------------------------------------------------------
|
||
#include "igs_ifx_common.h" /* igs::image::rgba */
|
||
#include "igs_hsv_add.h"
|
||
namespace
|
||
{
|
||
/* raster画像にノイズをのせるtemplate */
|
||
template <class IT, class RT>
|
||
void change_template_(
|
||
IT *image_array, const int height, const int width, const int channels
|
||
|
||
,
|
||
const noise_ref_ &noi
|
||
|
||
,
|
||
const RT *ref /* 求める画像(out)と同じ高さ、幅、チャンネル数 */
|
||
,
|
||
const int ref_mode /* 0=R,1=G,2=B,3=A,4=Luminance,5=Nothing */
|
||
|
||
,
|
||
const double offset, const double hue_scale, const double sat_scale, const double val_scale, const double alp_scale
|
||
|
||
,
|
||
const bool add_blend_sw)
|
||
{
|
||
const int t_max = std::numeric_limits<IT>::max();
|
||
const double div_val = static_cast<double>(t_max);
|
||
const double mul_val = static_cast<double>(t_max) + 0.999999;
|
||
const int r_max = std::numeric_limits<RT>::max();
|
||
if (igs::image::rgba::siz == channels) {
|
||
using namespace igs::image::rgba;
|
||
for (int yy = 0; yy < height; ++yy) {
|
||
for (int xx = 0; xx < width; ++xx, image_array += channels) {
|
||
/* 変化量初期値 */
|
||
double refv = 1.0;
|
||
|
||
/* 参照画像あればピクセル単位の画像変化量を得る */
|
||
if (ref != 0) {
|
||
refv *= igs::color::ref_value(
|
||
ref, channels, r_max, ref_mode);
|
||
ref += channels; /* continue;の前に行うこと */
|
||
}
|
||
|
||
/* 加算合成で、Alpha値ゼロならRGB値を計算する必要はない */
|
||
if (add_blend_sw && (0 == image_array[alp])) {
|
||
continue;
|
||
}
|
||
/* 加算合成でなくAlpha合成の時は、
|
||
Alpha値がゼロでもRGB値は存在する(してもよい) */
|
||
|
||
/* HSVAそれぞれに対するオフセット済ノイズ値 */
|
||
refv *= (noi.noise(xx, yy) - offset);
|
||
|
||
/* マスクSWがON、なら変化をMask */
|
||
if (add_blend_sw && (image_array[alp] < t_max)) {
|
||
refv *= static_cast<double>(image_array[alp]) / div_val;
|
||
}
|
||
|
||
/* RGBAにHSVAノイズを加える */
|
||
double rr, gg, bb, aa;
|
||
pixel_rgba_(
|
||
static_cast<double>(image_array[red]) / div_val, static_cast<double>(image_array[gre]) / div_val, static_cast<double>(image_array[blu]) / div_val, static_cast<double>(image_array[alp]) / div_val, refv * hue_scale, refv * sat_scale, refv * val_scale, refv * alp_scale, rr, gg, bb, aa);
|
||
|
||
/* 変化後の値を戻す */
|
||
image_array[red] = static_cast<IT>(rr * mul_val);
|
||
image_array[gre] = static_cast<IT>(gg * mul_val);
|
||
image_array[blu] = static_cast<IT>(bb * mul_val);
|
||
image_array[alp] = static_cast<IT>(aa * mul_val);
|
||
}
|
||
}
|
||
} else if (igs::image::rgb::siz == channels) {
|
||
using namespace igs::image::rgb;
|
||
for (int yy = 0; yy < height; ++yy) {
|
||
for (int xx = 0; xx < width; ++xx, image_array += channels) {
|
||
/* 変化量初期値 */
|
||
double refv = 1.0;
|
||
|
||
/* 参照画像あればピクセル単位の画像変化量を得る */
|
||
if (ref != 0) {
|
||
refv *= igs::color::ref_value(
|
||
ref, channels, r_max, ref_mode);
|
||
ref += channels; /* continue;の前に行うこと */
|
||
}
|
||
|
||
/* HSVそれぞれに対するオフセット済ノイズ値 */
|
||
refv *= (noi.noise(xx, yy) - offset);
|
||
|
||
/* RGBにHSVノイズを加える */
|
||
double rr, gg, bb, aa;
|
||
pixel_rgba_(
|
||
static_cast<double>(image_array[red]) / div_val, static_cast<double>(image_array[gre]) / div_val, static_cast<double>(image_array[blu]) / div_val, 1.0, refv * hue_scale, refv * sat_scale, refv * val_scale, 0.0, rr, gg, bb, aa);
|
||
|
||
/* 変化後の値を戻す */
|
||
image_array[red] = static_cast<IT>(rr * mul_val);
|
||
image_array[gre] = static_cast<IT>(gg * mul_val);
|
||
image_array[blu] = static_cast<IT>(bb * mul_val);
|
||
}
|
||
}
|
||
} else if (1 == channels) { /* grayscale */
|
||
for (int yy = 0; yy < height; ++yy) {
|
||
for (int xx = 0; xx < width; ++xx, ++image_array) {
|
||
/* 変化量初期値 */
|
||
double refv = 1.0;
|
||
|
||
/* 参照画像あればピクセル単位の画像変化量を得る */
|
||
if (ref != 0) {
|
||
refv *= igs::color::ref_value(
|
||
ref, channels, r_max, ref_mode);
|
||
ref += channels; /* continue;の前に行うこと */
|
||
}
|
||
|
||
/* Lに対するオフセット済ノイズ値 */
|
||
refv *= (noi.noise(xx, yy) - offset);
|
||
|
||
/* 変化なしなら次へ */
|
||
if (0.0 == refv * val_scale) {
|
||
continue;
|
||
}
|
||
|
||
/* GrayscaleにLノイズを加える */
|
||
double val = static_cast<double>(image_array[0]) / div_val + refv * val_scale;
|
||
val = (val < 0.0) ? 0.0 : ((1.0 < val) ? 1.0 : val);
|
||
|
||
/* 変化後の値を戻す */
|
||
image_array[0] = static_cast<IT>(val * mul_val);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
void igs::hsv_add::change(
|
||
unsigned char *image_array, const int height, const int width, const int channels, const int bits
|
||
|
||
,
|
||
const unsigned char *noi_image_array, const int noi_height, const int noi_width, const int noi_channels, const int noi_bits
|
||
|
||
,
|
||
const unsigned char *ref /* 求める画像と同じ高、幅、channels数 */
|
||
,
|
||
const int ref_bits /* refがゼロのときはここもゼロ */
|
||
,
|
||
const int ref_mode /* 0=R,1=G,2=B,3=A,4=Luminance,5=Nothing */
|
||
|
||
,
|
||
const int xoffset, const int yoffset, const int from_rgba, const double offset, const double hue_scale, const double sat_scale, const double val_scale, const double alp_scale
|
||
|
||
,
|
||
const bool add_blend_sw)
|
||
{
|
||
if ((0.0 == hue_scale) && (0.0 == sat_scale) && (0.0 == val_scale) && (0.0 == alp_scale)) {
|
||
return;
|
||
}
|
||
|
||
if ((igs::image::rgba::siz != channels) &&
|
||
(igs::image::rgb::siz != channels) &&
|
||
(1 != channels) /* grayscale */
|
||
) {
|
||
throw std::domain_error("Bad channels,Not rgba/rgb/grayscale");
|
||
}
|
||
|
||
/* ノイズ参照画像を作成する */
|
||
noise_ref_ noi(
|
||
noi_image_array
|
||
|
||
,
|
||
noi_height, noi_width, noi_channels, noi_bits
|
||
|
||
,
|
||
xoffset, yoffset, from_rgba);
|
||
|
||
/* rgb(a)画像にhsv(a)でドットノイズを加える */
|
||
if ((std::numeric_limits<unsigned char>::digits == bits) && ((std::numeric_limits<unsigned char>::digits == ref_bits) || (0 == ref_bits))) {
|
||
change_template_(
|
||
image_array, height, width, channels, noi, ref, ref_mode, offset, hue_scale, sat_scale, val_scale, alp_scale, add_blend_sw);
|
||
} else if ((std::numeric_limits<unsigned short>::digits == bits) && ((std::numeric_limits<unsigned char>::digits == ref_bits) || (0 == ref_bits))) {
|
||
change_template_(
|
||
reinterpret_cast<unsigned short *>(image_array), height, width, channels, noi, ref, ref_mode, offset, hue_scale, sat_scale, val_scale, alp_scale, add_blend_sw);
|
||
} else if ((std::numeric_limits<unsigned short>::digits == bits) && (std::numeric_limits<unsigned short>::digits == ref_bits)) {
|
||
change_template_(
|
||
reinterpret_cast<unsigned short *>(image_array), height, width, channels, noi, reinterpret_cast<const unsigned short *>(ref), ref_mode, offset, hue_scale, sat_scale, val_scale, alp_scale, add_blend_sw);
|
||
} else if ((std::numeric_limits<unsigned char>::digits == bits) && (std::numeric_limits<unsigned short>::digits == ref_bits)) {
|
||
change_template_(
|
||
image_array, height, width, channels, noi, reinterpret_cast<const unsigned short *>(ref), ref_mode, offset, hue_scale, sat_scale, val_scale, alp_scale, add_blend_sw);
|
||
} else {
|
||
throw std::domain_error("Bad bits,Not uchar/ushort");
|
||
}
|
||
}
|