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DetectPureQR ported

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This commit is contained in:
Henry Schimke
2023-03-20 11:09:06 -05:00
parent 75313c26f8
commit 3d75de7183
8 changed files with 168 additions and 86 deletions
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127
src/qrcode/cpp_port/detector.rs
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@@ -750,61 +750,102 @@ pub fn SampleQR(image: &BitMatrix, fp: &FinderPatternSet) -> Result<QRCodeDetect
* around it. This is a specialized method that works exceptionally fast in this special
* case.
*/
pub fn DetectPureQR( image:&BitMatrix) -> Result<QRCodeDetectorResult>
{
type Pattern = Vec<PatternType>;
pub fn DetectPureQR(image: &BitMatrix) -> Result<QRCodeDetectorResult> {
type Pattern = Vec<PatternType>;
// #ifdef PRINT_DEBUG
// SaveAsPBM(image, "weg.pbm");
// #endif
// #ifdef PRINT_DEBUG
// SaveAsPBM(image, "weg.pbm");
// #endif
const MIN_MODULES: u32 = Version::DimensionOfVersion(1, false);
const MAX_MODULES:u32 = Version::DimensionOfVersion(40, false);
const MIN_MODULES: u32 = Version::DimensionOfVersion(1, false);
const MAX_MODULES: u32 = Version::DimensionOfVersion(40, false);
let left;
let left;
let top;
let width;
let height;
if (!image.findBoundingBox(left, top, width, height, MIN_MODULES) || std::abs(width - height) > 1)
{return Err(Exceptions::NOT_FOUND)}
let right = left + width - 1;
let bottom = top + height - 1;
if (!image.findBoundingBox(left, top, width, height, MIN_MODULES)
|| (*width as i32 - *height as i32).abs() > 1)
{
return Err(Exceptions::NOT_FOUND);
}
let right = *left + *width - 1;
let bottom = *top + *height - 1;
let tl = point_i(*left, *top);
let tr = point_i(*right, *top);
let bl = point_i(*left, *bottom);
let diagonal : Pattern;
// allow corners be moved one pixel inside to accommodate for possible aliasing artifacts
for [p,d] in [[tl, point_i(1,1)], [tr, point(-1.0,1.0)], [bl, point(1.0,-1.0)]] {
// for (auto [p, d] : {std::pair(tl, PointI{1, 1}), {tr, {-1, 1}}, {bl, {1, -1}}}) {
diagonal = EdgeTracer::new(image, p, d).readPatternFromBlack(1, width / 3 + 1).ok_or(Exceptions::NOT_FOUND)?;
// diagonal = BitMatrixCursorI(image, p, d).readPatternFromBlack<Pattern>(1, width / 3 + 1);
if (!IsPattern(diagonal, PATTERN) != 0.0)
{return Err(Exceptions::NOT_FOUND);}
}
let tl = point_i(*left, *top);
let tr = point_i(right, *top);
let bl = point_i(*left, bottom);
let diagonal: Pattern;
// allow corners be moved one pixel inside to accommodate for possible aliasing artifacts
for [p, d] in [
[tl, point_i(1, 1)],
[tr, point(-1.0, 1.0)],
[bl, point(1.0, -1.0)],
] {
// for (auto [p, d] : {std::pair(tl, PointI{1, 1}), {tr, {-1, 1}}, {bl, {1, -1}}}) {
diagonal = EdgeTracer::new(image, p, d)
.readPatternFromBlack(1, Some(*width / 3 + 1))
.ok_or(Exceptions::NOT_FOUND)?;
// diagonal = BitMatrixCursorI(image, p, d).readPatternFromBlack<Pattern>(1, width / 3 + 1);
let view = PatternView::new(&diagonal.into());
if (!(IsPattern(&view, &PATTERN, None, 0.0, 0.0, None) != 0.0)) {
return Err(Exceptions::NOT_FOUND);
}
}
let fpWidth = Reduce(diagonal);
let dimension =
EstimateDimension(image, {tl + fpWidth / 2 * PointF(1, 1), fpWidth}, {tr + fpWidth / 2 * PointF(-1, 1), fpWidth}).dim;
let fpWidth = diagonal.iter().sum::<u16>() as i32; //Reduce(diagonal);
let dimension = EstimateDimension(
image,
ConcentricPattern {
p: tl + fpWidth as f32 / 2.0 * point_i(1, 1),
size: fpWidth,
},
ConcentricPattern {
p: tr + fpWidth as f32 / 2.0 * point(-1.0, 1.0),
size: fpWidth,
},
)
.dim;
let moduleSize:f32 = float(width) / dimension;
if (dimension < MIN_MODULES || dimension > MAX_MODULES ||
!image.isIn(PointF{left + moduleSize / 2 + (dimension - 1) * moduleSize,
top + moduleSize / 2 + (dimension - 1) * moduleSize}))
{return Err(Exceptions::NOT_FOUND);}
let moduleSize: f32 = ((*width) as f32) / dimension as f32;
if (dimension < MIN_MODULES as i32
|| dimension > MAX_MODULES as i32
|| !image.is_in(point(
*left as f32 + moduleSize / 2.0 + (dimension - 1) as f32 * moduleSize as f32,
*top as f32 + moduleSize / 2.0 + (dimension - 1) as f32 * moduleSize,
)))
{
return Err(Exceptions::NOT_FOUND);
}
// #ifdef PRINT_DEBUG
// LogMatrix log;
// LogMatrixWriter lmw(log, image, 5, "grid2.pnm");
// for (int y = 0; y < dimension; y++)
// for (int x = 0; x < dimension; x++)
// log(PointF(left + (x + .5f) * moduleSize, top + (y + .5f) * moduleSize));
// #endif
// #ifdef PRINT_DEBUG
// LogMatrix log;
// LogMatrixWriter lmw(log, image, 5, "grid2.pnm");
// for (int y = 0; y < dimension; y++)
// for (int x = 0; x < dimension; x++)
// log(PointF(left + (x + .5f) * moduleSize, top + (y + .5f) * moduleSize));
// #endif
// Now just read off the bits (this is a crop + subsample)
return {Deflate(image, dimension, dimension, top + moduleSize / 2, left + moduleSize / 2, moduleSize),
{{left, top}, {right, top}, {right, bottom}, {left, bottom}}};
// Now just read off the bits (this is a crop + subsample)
Ok(QRCodeDetectorResult {
bit_source: image.Deflate(
dimension as u32,
dimension as u32,
*top as f32 + moduleSize / 2.0,
*left as f32 + moduleSize / 2.0,
moduleSize,
)?,
result_points: vec![
point_i(*left, *top),
point_i(right, *top),
point_i(right, bottom),
point_i(*left, bottom),
],
})
// return {Deflate(image, dimension, dimension, top + moduleSize / 2, left + moduleSize / 2, moduleSize),
// {{left, top}, {right, top}, {right, bottom}, {left, bottom}}};
}
pub fn DetectPureMQR( image:&BitMatrix) -> Result<QRCodeDetectorResult>