lauchmelder/Bildverarbeitung2
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Lauchmelder 2022-01-22 13:48:17 +01:00
parent f08e007f44
commit 02fd658ae4
2 changed files with 7 additions and 5 deletions
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4
include/bild.hpp
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@ -14,7 +14,7 @@
class Bild class Bild
{ {
public: public:
// ASCII characters used when printing the image to stdcout // ASCII characters used when printing the image to stdout
static const std::string asciiBrightnessMap; static const std::string asciiBrightnessMap;
public: public:
@ -51,7 +51,7 @@ public:
* @brief Renders the image to the console * @brief Renders the image to the console
* *
* Draws the image in the console using ascii characters. * Draws the image in the console using ascii characters.
* Das war zwar in der Aufgabe nicht verlangt aber ich wollt schon gern die Bilder sehen * Das war zwar in der Aufgabe nicht verlangt aber ich wollte gern die Bilder sehen
* *
* @param os Output stream to draw to * @param os Output stream to draw to
* @param image Image to draw * @param image Image to draw

8
src/bild.cpp
View file

@ -71,6 +71,8 @@ std::ofstream& operator<<(std::ofstream& file, const Bild& image)
for(uint8_t pixel : image.pixels) for(uint8_t pixel : image.pixels)
{ {
uint32_t value = static_cast<uint32_t>(pixel); uint32_t value = static_cast<uint32_t>(pixel);
// If the current line would become longer than 70 characters, write the line to
// the file, insert a newline and clear the line
if(line.size() + std::to_string(value).length() > 70) if(line.size() + std::to_string(value).length() > 70)
{ {
file << line << std::endl; file << line << std::endl;
@ -80,6 +82,7 @@ std::ofstream& operator<<(std::ofstream& file, const Bild& image)
line += std::to_string(value) + " "; line += std::to_string(value) + " ";
} }
// Write remaining lines to file
file << line << std::endl; file << line << std::endl;
return file; return file;
@ -87,8 +90,7 @@ std::ofstream& operator<<(std::ofstream& file, const Bild& image)
std::ostream& operator<<(std::ostream& os, const Bild& image) std::ostream& operator<<(std::ostream& os, const Bild& image)
{ {
// Loop over pixels in image
for(uint16_t y = 0; y < image.height; y++) for(uint16_t y = 0; y < image.height; y++)
{ {
std::stringstream lineBuffer; std::stringstream lineBuffer;
@ -100,7 +102,7 @@ std::ostream& operator<<(std::ostream& os, const Bild& image)
uint8_t asciiMapIndex = static_cast<uint8_t>(brightness * (Bild::asciiBrightnessMap.length() - 1) / 255); uint8_t asciiMapIndex = static_cast<uint8_t>(brightness * (Bild::asciiBrightnessMap.length() - 1) / 255);
lineBuffer << Bild::asciiBrightnessMap[asciiMapIndex]; lineBuffer << Bild::asciiBrightnessMap[asciiMapIndex];
} }
std::cout << lineBuffer.str() << std::endl; std::cout << lineBuffer.str() << std::endl;
} }