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quantizer_cpp.patch
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diff '--color=auto' -uNr patch/celebi.h materialyoucolor/quantize/celebi.h
--- patch/celebi.h 2024-01-13 11:47:16.477314056 +0530
+++ materialyoucolor/quantize/celebi.h 2023-12-29 11:08:43.363374804 +0530
@@ -22,8 +22,8 @@
#include <vector>
-#include "cpp/quantize/wsmeans.h"
-#include "cpp/utils/utils.h"
+#include "wsmeans.h"
+#include "utils.h"
namespace material_color_utilities {
diff '--color=auto' -uNr patch/lab.cc materialyoucolor/quantize/lab.cc
--- patch/lab.cc 2024-01-13 11:47:16.030646286 +0530
+++ materialyoucolor/quantize/lab.cc 2023-12-29 11:08:43.363374804 +0530
@@ -14,11 +14,11 @@
* limitations under the License.
*/
-#include "cpp/quantize/lab.h"
+#include "lab.h"
#include <math.h>
-#include "cpp/utils/utils.h"
+#include "utils.h"
namespace material_color_utilities {
diff '--color=auto' -uNr patch/lab.h materialyoucolor/quantize/lab.h
--- patch/lab.h 2024-01-13 11:47:15.627311957 +0530
+++ materialyoucolor/quantize/lab.h 2023-12-29 11:08:43.363374804 +0530
@@ -28,7 +28,7 @@
#include <unordered_set>
#include <vector>
-#include "cpp/utils/utils.h"
+#include "utils.h"
namespace material_color_utilities {
diff '--color=auto' -uNr patch/utils.cc materialyoucolor/quantize/utils.cc
--- patch/utils.cc 2024-01-13 11:47:17.760650558 +0530
+++ materialyoucolor/quantize/utils.cc 2024-01-13 12:49:58.022437349 +0530
@@ -14,7 +14,7 @@
* limitations under the License.
*/
-#include "cpp/utils/utils.h"
+#include "utils.h"
#include <math.h>
@@ -23,8 +23,8 @@
#include <cstdint>
#include <cstdio>
#include <string>
-
-#include "absl/strings/str_cat.h"
+#include <iomanip>
+#include <sstream>
namespace material_color_utilities {
@@ -140,7 +140,7 @@
// Converts a color in ARGB format to a hexadecimal string in lowercase.
//
// For instance: hex_from_argb(0xff012345) == "ff012345"
-std::string HexFromArgb(Argb argb) { return absl::StrCat(absl::Hex(argb)); }
+std::string hex_from_argb(int color) { return std::stringstream() << std::hex << std::setw(8) << std::setfill('0') << color, std::stringstream().str().substr(2); }
Argb IntFromLstar(const double lstar) {
double y = YFromLstar(lstar);
@@ -172,6 +172,8 @@
input.a * matrix[1][0] + input.b * matrix[1][1] + input.c * matrix[1][2];
double c =
input.a * matrix[2][0] + input.b * matrix[2][1] + input.c * matrix[2][2];
- return (Vec3){a, b, c};
+ // Fix build on windows
+ Vec3 __ = {a, b, c};
+ return __;
}
} // namespace material_color_utilities
diff '--color=auto' -uNr patch/wsmeans.cc materialyoucolor/quantize/wsmeans.cc
--- patch/wsmeans.cc 2024-01-13 11:47:15.197310895 +0530
+++ materialyoucolor/quantize/wsmeans.cc 2024-01-09 17:35:33.361759926 +0530
@@ -14,7 +14,7 @@
* limitations under the License.
*/
-#include "cpp/quantize/wsmeans.h"
+#include "wsmeans.h"
#include <algorithm>
#include <cmath>
@@ -27,8 +27,8 @@
#include <unordered_set>
#include <vector>
-#include "absl/container/flat_hash_map.h"
-#include "cpp/quantize/lab.h"
+// #include "absl/container/flat_hash_map.h"
+#include "lab.h"
constexpr int kMaxIterations = 100;
constexpr double kMinDeltaE = 3.0;
@@ -64,7 +64,8 @@
}
uint32_t pixel_count = input_pixels.size();
- absl::flat_hash_map<Argb, int> pixel_to_count;
+ // absl::flat_hash_map<Argb, int> pixel_to_count;
+ std::unordered_map<Argb, int> pixel_to_count;
std::vector<uint32_t> pixels;
pixels.reserve(pixel_count);
std::vector<Lab> points;
@@ -75,7 +76,8 @@
// std::unordered_map 10.2 ms
// absl::btree_map 9.0 ms
// absl::flat_hash_map 8.0 ms
- absl::flat_hash_map<Argb, int>::iterator it = pixel_to_count.find(pixel);
+ // absl::flat_hash_map<Argb, int>::iterator it = pixel_to_count.find(pixel);
+ std::unordered_map<Argb, int>::iterator it = pixel_to_count.find(pixel);
if (it != pixel_to_count.end()) {
it->second++;
diff '--color=auto' -uNr patch/wsmeans.h materialyoucolor/quantize/wsmeans.h
--- patch/wsmeans.h 2024-01-13 11:47:14.800643248 +0530
+++ materialyoucolor/quantize/wsmeans.h 2023-12-29 11:08:43.370041494 +0530
@@ -21,7 +21,7 @@
#include <map>
#include <vector>
-#include "cpp/utils/utils.h"
+#include "utils.h"
namespace material_color_utilities {
diff '--color=auto' -uNr patch/wu.cc materialyoucolor/quantize/wu.cc
--- patch/wu.cc 2024-01-13 11:47:14.367308844 +0530
+++ materialyoucolor/quantize/wu.cc 2023-12-29 11:08:43.370041494 +0530
@@ -14,7 +14,7 @@
* limitations under the License.
*/
-#include "cpp/quantize/wu.h"
+#include "wu.h"
#include <stdlib.h>
@@ -23,7 +23,7 @@
#include <cstdio>
#include <vector>
-#include "cpp/utils/utils.h"
+#include "utils.h"
namespace material_color_utilities {
diff '--color=auto' -uNr patch/wu.h materialyoucolor/quantize/wu.h
--- patch/wu.h 2024-01-13 11:47:13.933974439 +0530
+++ materialyoucolor/quantize/wu.h 2023-12-29 11:08:43.370041494 +0530
@@ -21,7 +21,7 @@
#include <vector>
-#include "cpp/utils/utils.h"
+#include "utils.h"
namespace material_color_utilities {
--- materialyoucolor/quantize/celebi.cc 2025-01-09 12:10:34.733592839 +0530
+++ patch/celebi.cc 2025-01-09 11:57:06.090837655 +0530
@@ -14,47 +14,81 @@
* limitations under the License.
*/
-#include "cpp/quantize/celebi.h"
+#include "celebi.h"
#include <cstddef>
+#include <cstdint>
#include <cstdio>
#include <cstdlib>
+#include <iostream>
#include <vector>
-#include "cpp/quantize/wsmeans.h"
-#include "cpp/quantize/wu.h"
-#include "cpp/utils/utils.h"
-
-namespace material_color_utilities {
-
-QuantizerResult QuantizeCelebi(const std::vector<Argb>& pixels,
- uint16_t max_colors) {
- if (max_colors == 0 || pixels.empty()) {
- return QuantizerResult();
- }
-
+#include "wsmeans.h"
+#include "wu.h"
+#include "utils.h"
+#include "pybind11/pybind11.h"
+#include "pybind11/stl.h"
+#define STB_IMAGE_IMPLEMENTATION
+#include "stb_image.h"
+
+namespace python = pybind11;
+
+// std::map<Argb, uint32_t>
+std::map<uint32_t, uint32_t> QuantizeCelebi(const std::vector<std::vector<int>>& pixels,
+ int max_colors) {
if (max_colors > 256) {
max_colors = 256;
}
-
int pixel_count = pixels.size();
- std::vector<Argb> opaque_pixels;
+ std::vector<material_color_utilities::Argb> opaque_pixels;
opaque_pixels.reserve(pixel_count);
for (int i = 0; i < pixel_count; i++) {
- int pixel = pixels[i];
- if (!IsOpaque(pixel)) {
- continue;
- }
+ uint32_t pixel = (pixels[i][0] << 16) |
+ (pixels[i][1] << 8) |
+ (pixels[i][2]);
+ //if (pixels[i].size() > 3 && pixels[i][3] == 255)
opaque_pixels.push_back(pixel);
}
- std::vector<Argb> wu_result = QuantizeWu(opaque_pixels, max_colors);
+ std::vector<material_color_utilities::Argb> wu_result = material_color_utilities::QuantizeWu(
+ opaque_pixels, max_colors);
- QuantizerResult result =
- QuantizeWsmeans(opaque_pixels, wu_result, max_colors);
+ material_color_utilities::QuantizerResult result =
+ material_color_utilities::QuantizeWsmeans(opaque_pixels, wu_result, max_colors);
+
+ return result.color_to_count;
+}
- return result;
+
+std::map<uint32_t, uint32_t> ImageQuantizeCelebi(const char* image_path, const int quality, int max_colors) {
+ int width, height, channels;
+ std::vector<std::vector<int>> pixel_array = {};
+ unsigned char* pixel_result = stbi_load(image_path, &width, &height, &channels, 4);
+ if (!pixel_result) {return QuantizeCelebi(pixel_array, max_colors);}
+ pixel_array.reserve( (width * height) / quality );
+ unsigned char* pixel_position;
+ int _quality = quality;
+ for (int y = 0; y < height; ++y) {
+ for (int x = 0; x < width; x = x+_quality) {
+ pixel_position = pixel_result + (x + y * width) * 4;
+ std::vector<int> current_color = {
+ pixel_position[0], pixel_position[1], pixel_position[2]};
+ if (channels > 3) {current_color.push_back(pixel_position[3]);}
+ pixel_array.push_back(current_color);
+ if (_quality < quality) {_quality = quality;}
+ }
+ if (y % 2 == 0) {
+ _quality = quality / 2;
+ } else {_quality = quality;}
+ }
+ stbi_image_free(pixel_result);
+ return QuantizeCelebi(pixel_array, max_colors);
}
-} // namespace material_color_utilities
+
+PYBIND11_MODULE(celebi, m) {
+ m.doc() = "Functions from cpp backend";
+ m.def("QuantizeCelebi", &QuantizeCelebi, "Get dominant colors");
+ m.def("ImageQuantizeCelebi", &ImageQuantizeCelebi, "Get pixel array");
+}