feat: add ImageDataStorage �� pixel color reader
Console app to read RGB values from image pixels using stb_image.
This commit is contained in:
9
ImageData.slnx
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9
ImageData.slnx
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<Solution>
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<Configurations>
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<Platform Name="x64" />
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<Platform Name="x86" />
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</Configurations>
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<Project Path="ImageDataEncoder/ImageDataEncoder.vcxproj" Id="a1b2c3d4-e5f6-7890-abcd-ef1234567890" />
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<Project Path="ImageDataStorage/ImageDataStorage.vcxproj" Id="38af0933-38c7-4dca-b2e1-d58ccc23322b" />
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<Project Path="ImageDataDecoder/ImageDataDecoder.vcxproj" Id="b2c3d4e5-f6a7-8901-bcde-f12345678901" />
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</Solution>
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80
ImageDataStorage/ImageDataStorage.cpp
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80
ImageDataStorage/ImageDataStorage.cpp
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#include <iostream>
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#include <string>
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#include <stdexcept>
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#include <cstdlib>
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#define STB_IMAGE_IMPLEMENTATION
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#include "stb_image.h"
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struct RGB {
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unsigned char r;
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unsigned char g;
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unsigned char b;
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};
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RGB getPixelColor(const std::string& filename, int x, int y) {
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int width, height, channels;
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// Load image into memory
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unsigned char* data = stbi_load(filename.c_str(), &width, &height, &channels, 0);
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if (!data) {
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throw std::runtime_error("Failed to load image: " + filename);
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}
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// Validate coordinates
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if (x < 0 || y < 0 || x >= width || y >= height) {
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stbi_image_free(data);
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throw std::out_of_range("Pixel coordinates out of range.");
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}
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// Calculate pixel index
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int index = (y * width + x) * channels;
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RGB color = { 0, 0, 0 };
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if (channels >= 3) { // RGB or RGBA
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color.r = data[index + 0];
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color.g = data[index + 1];
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color.b = data[index + 2];
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}
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else if (channels == 1) {
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color.r = color.g = color.b = data[index];
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}
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// Free image memory
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stbi_image_free(data);
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return color;
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}
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int main() {
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try {
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std::string filename;
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int x, y;
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std::cout << "Enter image file path: ";
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std::getline(std::cin, filename);
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// Strip surrounding quotes if present
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if (filename.size() >= 2 && filename.front() == '"' && filename.back() == '"') {
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filename = filename.substr(1, filename.size() - 2);
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}
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std::cout << "Lade Bild von: " << filename << "\n";
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std::cout << "Enter pixel coordinates (x y): ";
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if (!(std::cin >> x >> y)) {
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throw std::invalid_argument("Invalid coordinates input.");
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}
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RGB color = getPixelColor(filename, x, y);
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std::cout << "Pixel at (" << x << ", " << y << ") -> "
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<< "R: " << static_cast<int>(color.r) << ", "
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<< "G: " << static_cast<int>(color.g) << ", "
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<< "B: " << static_cast<int>(color.b) << "\n";
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}
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catch (const std::exception& e) {
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std::cerr << "Error: " << e.what() << "\n";
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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138
ImageDataStorage/ImageDataStorage.vcxproj
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138
ImageDataStorage/ImageDataStorage.vcxproj
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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup Label="ProjectConfigurations">
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<ProjectConfiguration Include="Debug|Win32">
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<Configuration>Debug</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|Win32">
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<Configuration>Release</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Debug|x64">
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<Configuration>Debug</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|x64">
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<Configuration>Release</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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</ItemGroup>
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<PropertyGroup Label="Globals">
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<VCProjectVersion>18.0</VCProjectVersion>
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<Keyword>Win32Proj</Keyword>
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<ProjectGuid>{38af0933-38c7-4dca-b2e1-d58ccc23322b}</ProjectGuid>
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<RootNamespace>ImageDataStorage</RootNamespace>
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<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<PlatformToolset>v145</PlatformToolset>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<PlatformToolset>v145</PlatformToolset>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<PlatformToolset>v145</PlatformToolset>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<PlatformToolset>v145</PlatformToolset>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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<ImportGroup Label="ExtensionSettings">
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</ImportGroup>
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<ImportGroup Label="Shared">
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<PropertyGroup Label="UserMacros" />
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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<LanguageStandard>stdcpp20</LanguageStandard>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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<LanguageStandard>stdcpp20</LanguageStandard>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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<LanguageStandard>stdcpp20</LanguageStandard>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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<LanguageStandard>stdcpp20</LanguageStandard>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemGroup>
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<ClCompile Include="ImageDataStorage.cpp" />
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</ItemGroup>
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<ItemGroup>
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<ClInclude Include="stb_image.h" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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</ImportGroup>
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</Project>
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8104
ImageDataStorage/stb_image.h
Normal file
8104
ImageDataStorage/stb_image.h
Normal file
File diff suppressed because it is too large
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