export default function SetPixel (context, x, y, red = 0, green = 0, blue = 0, alpha = 255) {
const imageData = GetImageData(context, x, y, 1, 1);
if (SetPixelData(imageData, 0, 0, red, green, blue, alpha))
{
PutImageData(context, imageData, x, y);
}
return context;
}
loadComplete (file) {
const ctx = GetContext(this.canvas);
ctx.drawImage(file.data, 0, 0);
const imageData = GetImageData(ctx, 0, 0, 256, 256);
Emboss(imageData);
PutImageData(ctx, imageData, 256, 0);
}
loadComplete (file) {
// Draw the image
const ctx = GetContext(this.canvas);
ctx.drawImage(file.data, 0, 0);
const imageData = GetImageData(ctx);
FlipHorizontal(imageData);
ctx.clearRect(0, 0, 320, 200);
PutImageData(ctx, imageData);
}
loadComplete (file) {
// Draw the image
const ctx = GetContext(this.canvas);
ctx.drawImage(file.data, 0, 0);
const imageData = GetImageData(ctx);
// Process(imageData, this.greyScale);
Process(imageData, this.greyScale, 0, 0, 160, 200);
// Process(imageData, this.greyScale, 60, 0, 160, 200);
// Process(imageData, this.greyScale, 160, 0, 160, 200);
// Process(imageData, this.greyScale, 200, 100, 160, 200);
ctx.putImageData(imageData, 0, 0);
}
loadComplete (file) {
// Draw the image
const ctx = GetContext(this.canvas);
ctx.drawImage(file.data, 0, 0);
const imageData = GetImageData(ctx);
// Scan from Top to Bottom (Left to Right)
console.log(GetFirstPixel(imageData, 0)); // 9x23
// Scan from Bottom to Top (Right to Left)
console.log(GetFirstPixel(imageData, 1)); // 180x176
// Scan from Left to Right
console.log(GetFirstPixel(imageData, 2)); // 9x23
// Scan from Right to Left
console.log(GetFirstPixel(imageData, 3)); // 310x23
}