Попытка сделать что-то полезное
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4 changed files with 397 additions and 49 deletions
134
main.cpp
134
main.cpp
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@ -3,33 +3,119 @@
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const std::string FILENAME = "../elef.bmp";
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const std::string FILENAME_OUT = "../elef_out.bmp";
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//
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//void lab01() {
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// auto og_image = readBMPImage("../elef.bmp");
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// auto pixels1 = og_image.pixels_copy();
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// auto pixels2 = og_image.pixels_copy();
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// for (int i = 0; i < og_image.height(); ++i) {
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// for (int j = 0; j < og_image.width(); ++j) {
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// pixels1[i][j] = pixels1[i][j] / 2;
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// pixels2[i][j] = pixels2[i][j] * 2;
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// }
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// }
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// auto darkenImg = BMPImage(pixels1, og_image.width(), og_image.height());
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// auto lighterImg = BMPImage(pixels2, og_image.width(), og_image.height());
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// og_image.appendRight(lighterImg)->appendRight(darkenImg)->appendRight(invertColors(og_image))->appendRight(
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// grayscale(og_image))->save("../lab01/elef1.bmp");
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//}
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//
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//void lab02_01() {
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// auto img = readBMPImage("../tea.bmp");
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// auto img_512 = downscale2x(img);
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// auto img_256 = downscale2x(img_512);
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// auto img_128 = downscale2x(img_256);
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// img_512.save("../lab02/tea_512.bmp");
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// img_256.save("../lab02/tea_256.bmp");
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// img_128.save("../lab02/tea_128.bmp");
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// auto newImg = img.appendRight(img_512)->appendRight(img_256)->appendRight(img_128);
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// newImg->save("../lab02/tea_downscale.bmp");
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// auto img_from_512 = upscale2x(img_512);
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//// auto img_from_256 = upscale2x(upscale2x(img_256));
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//// auto img_from_128 = upscale2x(upscale2x(upscale2x(img_128)));
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// auto tmp = upscale2x(img_256);
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// auto img_from_256 = upscale2x(tmp);
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// auto tmp2 = upscale2x(img_128);
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// auto tmp3 = upscale2x(tmp2);
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// auto img_from_128 = upscale2x(tmp3);
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// img_from_512.save("../lab02/tea_from_512.bmp");
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// img_from_256.save("../lab02/tea_from_256.bmp");
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// img_from_128.save("../lab02/tea_from_128.bmp");
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// img.appendRight(img_from_512)->appendRight(img_from_256)->appendRight(img_from_128)->save("../lab02/tea_upscale.bmp");
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//// newImg2->save("../lab02/tea_upscale.bmp");
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//}
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//
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//void lab02_02() {
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// auto img = readBMPImage("../tea.bmp");
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// auto gsImg = grayscale(img);
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// gsImg.save("../lab02/tea_grayscale_256.bmp");
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// auto gsPixels = gsImg.pixels_copy();
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// auto width = gsImg.width();
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// auto height = gsImg.height();
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// for (int i = 0; i < height; ++i) {
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// for (int j = 0; j < width; ++j) {
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// gsPixels[i][j] = (gsPixels[i][j] / 2) * 2;
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// }
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// }
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// auto gsImg128 = BMPImage(gsPixels, width, height);
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// gsPixels = gsImg.pixels_copy();
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// for (int i = 0; i < height; ++i) {
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// for (int j = 0; j < width; ++j) {
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// gsPixels[i][j] = (gsPixels[i][j] / 4) * 4;
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// }
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// }
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// auto gsImg64 = BMPImage(gsPixels, width, height);
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// gsPixels = gsImg.pixels_copy();
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// for (int i = 0; i < height; ++i) {
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// for (int j = 0; j < width; ++j) {
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// gsPixels[i][j] = (gsPixels[i][j] / 8) * 8;
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// }
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// }
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// auto gsImg32 = BMPImage(gsPixels, width, height);
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// gsImg128.save("../lab02/tea_grayscale_128.bmp");
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// gsImg64.save("../lab02/tea_grayscale_64.bmp");
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// gsImg32.save("../lab02/tea_grayscale_32.bmp");
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// gsImg.appendRight(gsImg128)->appendRight(gsImg64)->appendRight(gsImg32)->save("../lab02/tea_grayscale.bmp");
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//}
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//
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//void lab02_03(){
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// auto img = readBMPImage("../tea.bmp");
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// auto img_1_5 = upscale1_5x(img);
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// auto img_2 = upscale2x(img);
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// auto img_3 = upscale2x(img_1_5);
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// img_1_5.save("../lab02/lab02_03/tea_x1_5.bmp");
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// img_2.save("../lab02/lab02_03/tea_x2.bmp");
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// img_3.save("../lab02/lab02_03/tea_x3.bmp");
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//// img.appendRight(img_1_5)->appendRight(img_2)->appendRight(img_3)->save("../lab02/lab02_03/tea_upscale.bmp");
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// img.appendRight(img_1_5)->save("../lab02/lab02_03/tea_upscale.bmp");
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//}
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void lab01() {
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auto og_image = readBMPImage(FILENAME);
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auto pixels = og_image.pixels_copy();
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for (int i = 0; i < og_image.height(); ++i) {
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for (int j = 0; j < og_image.width(); ++j) {
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uint8_t gray = pixels[i][j].r / 3 + pixels[i][j].g / 3 + pixels[i][j].b / 3;
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pixels[i][j] = {gray, gray, gray};
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}
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}
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auto image1 = new BMPImage(og_image.fileHeader_copy(), og_image.infoHeader_copy(), pixels);
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auto pixels2 = image1->pixels_copy();
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for (int i = 0; i < og_image.height(); ++i) {
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for (int j = 0; j < og_image.width(); ++j) {
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uint8_t gray = 0;
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if (pixels2[i][j].r > 80) gray = 255;
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pixels2[i][j] = {gray, gray, gray};
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}
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}
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auto image2 = new BMPImage(og_image.fileHeader_copy(), og_image.infoHeader_copy(), pixels2);
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image1->write("../elef_gs.bmp");
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image2->write("../elef_bw.bmp");
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og_image.write("../elef_out.bmp");
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// image.write(FILENAME_OUT);
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void test() {
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Pixel **test;
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test = new Pixel *[3];
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test[0] = new Pixel[3];
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test[1] = new Pixel[3];
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test[2] = new Pixel[3];
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test[0][0] = Pixel{0, 0, 0};
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test[0][1] = Pixel{127, 127, 127};
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test[0][2] = Pixel{255, 255, 255};
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test[1][0] = Pixel{127, 127, 127};
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test[1][1] = Pixel{63, 63, 63};
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test[1][2] = Pixel{127, 127, 127};
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test[2][0] = Pixel{255, 255, 255};
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test[2][1] = Pixel{127, 127, 127};
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test[2][2] = Pixel{0, 0, 0};
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auto test_img = BMPImage(test, 3, 3);
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test_img.save("../test.bmp");
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auto test_scale = upscale2x(test_img);
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test_scale.save("../test_scale.bmp");
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}
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int main() {
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lab01();
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//lab01();
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//lab02_01();
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//lab02_02();
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// lab02_03();
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test();
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return 0;
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}
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