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(test) formatting

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This commit is contained in:
Nick Fisher
2025-05-21 13:16:06 +08:00
parent 5ce2efa638
commit 1f58c13179
1 changed files with 46 additions and 46 deletions
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92
thermion_dart/test/projection_tests.dart
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@@ -119,56 +119,56 @@ void main() async {
}
// Improved blending - treating black pixels as transparent
final blendedImage = Float32List(width * height * 4);
final weightSums = List<double>.filled(width * height, 0.0);
final blendedImage = Float32List(width * height * 4);
final weightSums = List<double>.filled(width * height, 0.0);
// For each image
for (final image in images) {
// For each pixel in the image
for (int p = 0; p < width * height; p++) {
final baseIdx = p * 4;
final r = image[baseIdx];
final g = image[baseIdx + 1];
final b = image[baseIdx + 2];
final alpha = image[baseIdx + 3];
// Check if pixel is black (all color channels near zero)
final isBlack = (r < 0.01 && g < 0.01 && b < 0.01);
// Only include pixels that are non-black AND have non-zero alpha
if (!isBlack && alpha > 0) {
// Weight contribution by alpha value
final weight = alpha;
blendedImage[baseIdx] += r * weight;
blendedImage[baseIdx + 1] += g * weight;
blendedImage[baseIdx + 2] += b * weight;
blendedImage[baseIdx + 3] += weight;
// Track total weights for normalization
weightSums[p] += weight;
}
}
}
for (final image in images) {
// For each pixel in the image
for (int p = 0; p < width * height; p++) {
final baseIdx = p * 4;
final r = image[baseIdx];
final g = image[baseIdx + 1];
final b = image[baseIdx + 2];
final alpha = image[baseIdx + 3];
// Check if pixel is black (all color channels near zero)
final isBlack = (r < 0.01 && g < 0.01 && b < 0.01);
// Only include pixels that are non-black AND have non-zero alpha
if (!isBlack && alpha > 0) {
// Weight contribution by alpha value
final weight = alpha;
blendedImage[baseIdx] += r * weight;
blendedImage[baseIdx + 1] += g * weight;
blendedImage[baseIdx + 2] += b * weight;
blendedImage[baseIdx + 3] += weight;
// Track total weights for normalization
weightSums[p] += weight;
}
}
}
// Normalize by the accumulated weights
for (int p = 0; p < width * height; p++) {
final baseIdx = p * 4;
final weightSum = weightSums[p];
if (weightSum > 0) {
blendedImage[baseIdx] /= weightSum;
blendedImage[baseIdx + 1] /= weightSum;
blendedImage[baseIdx + 2] /= weightSum;
// Set alpha to full for pixels that had contributions
blendedImage[baseIdx + 3] = 1.0;
} else {
// For pixels with no contributions, ensure they're fully transparent
blendedImage[baseIdx] = 0;
blendedImage[baseIdx + 1] = 0;
blendedImage[baseIdx + 2] = 0;
blendedImage[baseIdx + 3] = 0;
}
}
for (int p = 0; p < width * height; p++) {
final baseIdx = p * 4;
final weightSum = weightSums[p];
if (weightSum > 0) {
blendedImage[baseIdx] /= weightSum;
blendedImage[baseIdx + 1] /= weightSum;
blendedImage[baseIdx + 2] /= weightSum;
// Set alpha to full for pixels that had contributions
blendedImage[baseIdx + 3] = 1.0;
} else {
// For pixels with no contributions, ensure they're fully transparent
blendedImage[baseIdx] = 0;
blendedImage[baseIdx + 1] = 0;
blendedImage[baseIdx + 2] = 0;
blendedImage[baseIdx + 3] = 0;
}
}
// Set the blended data to the projectedImage
final data = await projectedImage.getData();
data.setRange(0, data.length, blendedImage);