Created
April 11, 2019 15:05
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C++ version: | |
pixel at 0 0 is r = 255 g = 0 b = 0 | |
pixel at 1 0 is r = 0 g = 255 b = 0 | |
pixel at 0 1 is r = 0 g = 0 b = 255 | |
pixel at 1 1 is r = 0 g = 0 b = 128 | |
Python version: | |
pixel at 0,0 is r = 0, g = 0, b = 0 | |
pixel at 1,0 is r = 0, g = 0, b = 0 | |
pixel at 0,1 is r = 0, g = 0, b = 255 | |
pixel at 1,1 is r = 0, g = 0, b = 0 |
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#include <QImage> | |
#include <QColor> | |
#include <QDebug> | |
int main(int, char *[]) { | |
QImage image(2, 2, QImage::Format_RGB32); | |
image.setPixel(0, 0, QColor(Qt::red).rgb()); | |
image.setPixel(1, 0, QColor(Qt::green).rgb()); | |
image.setPixel(0, 1, QColor(Qt::blue).rgb()); | |
image.setPixel(1, 1, QColor(Qt::darkBlue).rgb()); | |
for (int y = 0; y < image.height(); ++y) { | |
const auto scanLine = (QRgb *)image.scanLine(y); | |
for (int x = 0; x < image.width(); ++x) { | |
const auto pixel = scanLine[x]; | |
qDebug() << "pixel at" << x << y << "is" | |
<< "r =" << qRed(pixel) | |
<< "g =" << qGreen(pixel) | |
<< "b =" << qBlue(pixel); | |
} | |
} | |
return 0; | |
} |
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from PySide2.QtCore import Qt | |
from PySide2.QtGui import QImage, qRed, qGreen, qBlue, QColor | |
image = QImage(2, 2, QImage.Format_RGB32) | |
image.setPixel(0, 0, QColor(Qt.red).rgb()) | |
image.setPixel(1, 0, QColor(Qt.green).rgb()) | |
image.setPixel(0, 1, QColor(Qt.blue).rgb()) | |
image.setPixel(1, 1, QColor(Qt.darkBlue).rgb()) | |
for y in range(image.height()): | |
scanLine = image.scanLine(y) | |
for x in range(image.width()): | |
pixel = scanLine[x] | |
print('pixel at {},{} is r = {}, g = {}, b = {}'.format( | |
x, y, qRed(pixel), qGreen(pixel), qBlue(pixel))) |
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