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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the Chromium LICENSE file.
#include "qcms.h"
#include "qcms_test_util.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
struct color_checker_chart {
char* name;
unsigned char r;
unsigned char g;
unsigned char b;
unsigned char a;
};
struct color_checker_chart adobe_munsell[24] = {
{ "Dark Skin", 106, 81, 67, 255 },
{ "Light Skin", 182, 149, 130, 255 },
{ "Blue Sky", 103, 122, 154, 255 },
{ "Foliage", 95, 108, 69, 255 },
{ "Blue Flower", 129, 128, 174, 255 },
{ "Bluish Green", 133, 189, 170, 255 },
{ "Orange", 194, 121, 48, 255 },
{ "Purplish Blue", 79, 91, 162, 255 },
{ "Moderate Red", 170, 85, 97, 255 },
{ "Purple", 84, 62, 105, 255 },
{ "Yellow Green", 167, 186, 73, 255 },
{ "Orange Yellow", 213, 162, 57, 255 },
{ "Blue", 54, 62, 149, 255 },
{ "Green", 101, 148, 76, 255 },
{ "Red", 152, 48, 58, 255 },
{ "Yellow", 228, 199, 55, 255 },
{ "Magenta", 164, 83, 144, 255 },
{ "Cyan", 63, 134, 163, 255 },
{ "White", 242, 241, 236, 255 },
{ "Neutral 8", 200, 200, 199, 255 },
{ "Neutral 6.5", 159, 160, 159, 255 },
{ "Neutral 5", 122, 121, 120, 255 },
{ "Neutral 3.5", 84, 84, 84, 255 },
{ "Black", 53, 53, 53, 255 },
};
struct color_checker_chart srgb_munsell[24] = {
{ "Dark Skin", 115, 80, 64, 255 },
{ "Light Skin", 195, 151, 130, 255 },
{ "Blue Sky", 94, 123, 156, 255 },
{ "Foliage", 88, 108, 65, 255 },
{ "Blue Flower", 130, 129, 177, 255 },
{ "Bluish Green", 100, 190, 171, 255 },
{ "Orange", 217, 122, 37, 255 },
{ "Purplish Blue", 72, 91, 165, 255 },
{ "Moderate Red", 194, 84, 98, 255 },
{ "Purple", 91, 59, 107, 255 },
{ "Yellow Green", 160, 188, 60, 255 },
{ "Orange Yellow", 230, 163, 42, 255 },
{ "Blue", 46, 60, 153, 255 },
{ "Green", 71, 150, 69, 255 },
{ "Red", 177, 44, 56, 255 },
{ "Yellow", 238, 200, 27, 255 },
{ "Magenta", 187, 82, 148, 255 },
{ "Cyan", /* -49 */ 0, 135, 166, 255 },
{ "White", 243, 242, 237, 255 },
{ "Neutral 8",201, 201, 201, 255 },
{ "Neutral 6.5", 161, 161, 161, 255 },
{ "Neutral 5",122, 122, 121, 255 },
{ "Neutral 3.5", 83, 83, 83, 255 },
{ "Black", 50, 49, 50, 255 },
};
extern void qcms_transform_data_rgba_out_lut_precache(qcms_transform *transform,
unsigned char *src,
unsigned char *dest,
size_t length,
qcms_format_type output_format);
static qcms_bool invalid_rgb_color_profile(qcms_profile *profile)
{
return rgbData != qcms_profile_get_color_space(profile) || qcms_profile_is_bogus(profile);
}
static int color_error(struct color_checker_chart cx, struct color_checker_chart cy)
{
int dr = cx.r - cy.r;
int dg = cx.g - cy.g;
int db = cx.b - cy.b;
return round(sqrt((dr * dr) + (dg * dg) + (db * db)));
}
static qcms_profile* open_profile_from_path(const char *path)
{
if (strcmp(path, "internal-srgb") != 0)
return qcms_profile_from_path(path);
return qcms_profile_sRGB();
}
static int qcms_test_munsell(size_t width,
size_t height,
int iterations,
const char *in_path,
const char *out_path,
const int force_software)
{
qcms_profile *in_profile = NULL;
qcms_profile *out_profile = NULL;
qcms_format_type format = {0, 2}; // RGBA
qcms_transform *transform;
struct color_checker_chart *source_munsell = NULL;
struct color_checker_chart *reference_munsell = NULL;
struct color_checker_chart destination_munsell[24];
char file_name[256];
FILE *output;
int dE[24];
float rmse;
int i;
printf("Test qcms data transform accuracy using Munsell colors\n");
fflush(stdout);
if (in_path == NULL || out_path == NULL) {
fprintf(stderr, "%s: please provide valid ICC profiles via -i/o options\n", __FUNCTION__);
return EXIT_FAILURE;
}
in_profile = open_profile_from_path(in_path);
if (!in_profile || invalid_rgb_color_profile(in_profile)) {
fprintf(stderr, "Invalid input profile\n");
return EXIT_FAILURE;
}
source_munsell = srgb_munsell;
if (strstr(in_profile->description, "Adobe") != NULL) {
source_munsell = adobe_munsell;
}
printf("Input profile %s\n", in_profile->description);
out_profile = open_profile_from_path(out_path);
if (!out_profile || invalid_rgb_color_profile(out_profile)) {
fprintf(stderr, "Invalid output profile\n");
return EXIT_FAILURE;
}
reference_munsell = srgb_munsell;
if (strstr(out_profile->description, "Adobe") != NULL) {
reference_munsell = adobe_munsell;
}
printf("Output profile %s (using qcms precache)\n", out_profile->description);
qcms_profile_precache_output_transform(out_profile);
transform = qcms_transform_create(in_profile, QCMS_DATA_RGBA_8, out_profile, QCMS_DATA_RGBA_8, QCMS_INTENT_DEFAULT);
if (!transform) {
fprintf(stderr, "Failed to create color transform\n");
return EXIT_FAILURE;
} else if (force_software) {
transform->transform_fn = qcms_transform_data_rgba_out_lut_precache;
}
if (qcms_profile_match(in_profile, out_profile)) {
printf("Note: input / output profiles match\n");
}
rmse = 0.0f;
for (i = 0; i < 24; i++) {
transform->transform_fn(transform, &source_munsell[i].r, &destination_munsell[i].r, 1, format);
dE[i] = color_error(reference_munsell[i], destination_munsell[i]);
rmse += dE[i] * dE[i];
}
rmse = sqrt(rmse / 24);
printf("RMS color error %.2f\n", rmse);
// Name and open test result file.
sprintf(file_name, "qcms-test-%ld-munsell-%s-to-%s-rms-%.3f.csv", (long int)time(NULL), in_profile->description, out_profile->description, rmse);
// FIXME: remove spaces from the file name?
output = fopen(file_name, "w");
// Print headers.
if (force_software)
fprintf(output, "Report for: qcms_transform_data_rgba_out_lut_precache\n\n");
else
fprintf(output, "Report for: qcms_transform_data_rgba_out_lut_sse2\n\n");
fprintf(output, "%14s,\t%s,\t%s,\t%s\n\n", "Color,", "Actual,,", "Expected,", "dE");
// Print results.
for (i = 0; i < 24; i++) {
fprintf(output, "%14s,\t%d,%d,%d,\t%d,%d,%d,\t%d\n",
source_munsell[i].name,
destination_munsell[i].r, destination_munsell[i].g, destination_munsell[i].b,
reference_munsell[i].r, reference_munsell[i].g, reference_munsell[i].b,
dE[i]);
}
fprintf(output, "\nRMS color error = %.2f\n", rmse);
fclose(output);
printf("Output written to %s\n", file_name);
return rmse > 0.000001f;
}
struct qcms_test_case qcms_test_munsell_info = {
"qcms_test_munsell",
qcms_test_munsell,
QCMS_TEST_DISABLED
};
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