feat: url as input support

Author: ashish0kumar

CMakeLists.txt

@@ -21,6 +21,11 @@ add_executable(pixcii ${SOURCES})
 # Link libraries
 target_link_libraries(pixcii ${OpenCV_LIBS})
 
+# Link filesystem library for C++17
+if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS "9.0")
+    target_link_libraries(pixcii stdc++fs)
+endif()
+
 # Compiler-specific options
 if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
     target_compile_options(pixcii PRIVATE 

src/image.cpp

@@ -1,4 +1,3 @@
-// Define the implementations for the stb image libraries in this file
 #define STB_IMAGE_IMPLEMENTATION
 #define STB_IMAGE_WRITE_IMPLEMENTATION
 #define STB_IMAGE_RESIZE2_IMPLEMENTATION
@@ -159,8 +158,7 @@ std::vector<uint8_t> rgbToGrayscale(const Image &img)
             grayscale[static_cast<size_t>(y * img.width + x)] = static_cast<uint8_t>( // Use size_t for index calculation
                 constants::GRAYSCALE_WEIGHT_R * r +
                 constants::GRAYSCALE_WEIGHT_G * g +
-                constants::GRAYSCALE_WEIGHT_B * b
-            );
+                constants::GRAYSCALE_WEIGHT_B * b);
         }
     }