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detector builds but does not work

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This commit is contained in:
Henry Schimke
2023-03-20 12:12:25 -05:00
parent 3d75de7183
commit 0df86d4fd4
8 changed files with 233 additions and 122 deletions
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288
src/qrcode/cpp_port/detector.rs
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@@ -5,7 +5,7 @@ use crate::{
},
dimension, point_g, point_i,
qrcode::{
decoder::{Version, VersionRef},
decoder::{FormatInformation, Version, VersionRef},
detector::QRCodeDetectorResult,
},
Exceptions,
@@ -757,26 +757,21 @@ pub fn DetectPureQR(image: &BitMatrix) -> Result<QRCodeDetectorResult> {
// SaveAsPBM(image, "weg.pbm");
// #endif
const MIN_MODULES: u32 = Version::DimensionOfVersion(1, false);
const MAX_MODULES: u32 = Version::DimensionOfVersion(40, false);
let MIN_MODULES: u32 = Version::DimensionOfVersion(1, false);
let MAX_MODULES: u32 = Version::DimensionOfVersion(40, false);
let left;
let top;
let width;
let height;
let (found, left, top, width, height) = image.findBoundingBox(0, 0, 0, 0, MIN_MODULES);
if (!image.findBoundingBox(left, top, width, height, MIN_MODULES)
|| (*width as i32 - *height as i32).abs() > 1)
{
if (!found || (width as i32 - height as i32).abs() > 1) {
return Err(Exceptions::NOT_FOUND);
}
let right = *left + *width - 1;
let bottom = *top + *height - 1;
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;
let tl = point_i(left, top);
let tr = point_i(right, top);
let bl = point_i(left, bottom);
let mut diagonal: Pattern = Vec::default();
// allow corners be moved one pixel inside to accommodate for possible aliasing artifacts
for [p, d] in [
[tl, point_i(1, 1)],
@@ -785,10 +780,11 @@ pub fn DetectPureQR(image: &BitMatrix) -> Result<QRCodeDetectorResult> {
] {
// 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))
.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());
let diag_hld = diagonal.clone().into();
let view = PatternView::new(&diag_hld);
if (!(IsPattern(&view, &PATTERN, None, 0.0, 0.0, None) != 0.0)) {
return Err(Exceptions::NOT_FOUND);
}
@@ -808,12 +804,12 @@ pub fn DetectPureQR(image: &BitMatrix) -> Result<QRCodeDetectorResult> {
)
.dim;
let moduleSize: f32 = ((*width) as f32) / dimension as f32;
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,
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);
@@ -828,123 +824,197 @@ pub fn DetectPureQR(image: &BitMatrix) -> Result<QRCodeDetectorResult> {
// #endif
// Now just read off the bits (this is a crop + subsample)
Ok(QRCodeDetectorResult {
bit_source: image.Deflate(
Ok(QRCodeDetectorResult::new(
image.Deflate(
dimension as u32,
dimension as u32,
*top as f32 + moduleSize / 2.0,
*left as f32 + moduleSize / 2.0,
top as f32 + moduleSize / 2.0,
left as f32 + moduleSize / 2.0,
moduleSize,
)?,
result_points: vec![
point_i(*left, *top),
point_i(right, *top),
vec![
point_i(left, top),
point_i(right, top),
point_i(right, bottom),
point_i(*left, 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>
{
using Pattern = std::array<PatternView::value_type, PATTERN.size()>;
pub fn DetectPureMQR(image: &BitMatrix) -> Result<QRCodeDetectorResult> {
type Pattern = [PatternType; 5];
constexpr int MIN_MODULES = Version::DimensionOfVersion(1, true);
constexpr int MAX_MODULES = Version::DimensionOfVersion(4, true);
let MIN_MODULES = Version::DimensionOfVersion(1, true);
let MAX_MODULES = Version::DimensionOfVersion(4, true);
int left, top, width, height;
if (!image.findBoundingBox(left, top, width, height, MIN_MODULES) || std::abs(width - height) > 1)
return {};
int right = left + width - 1;
int bottom = top + height - 1;
let (found, left, top, width, height) = image.findBoundingBox(0, 0, 0, 0, MIN_MODULES);
// allow corners be moved one pixel inside to accommodate for possible aliasing artifacts
auto diagonal = BitMatrixCursorI(image, {left, top}, {1, 1}).readPatternFromBlack<Pattern>(1);
if (!IsPattern(diagonal, PATTERN))
return {};
// int left, top, width, height;
if (!found || (width as i32 - height as i32).abs() > 1) {
return Err(Exceptions::NOT_FOUND);
}
let right = left + width - 1;
let bottom = top + height - 1;
auto fpWidth = Reduce(diagonal);
float moduleSize = float(fpWidth) / 7;
int dimension = narrow_cast<int>(std::lround(width / moduleSize));
// allow corners be moved one pixel inside to accommodate for possible aliasing artifacts
let diagonal = EdgeTracer::new(&image, point_i(left, top), point_i(1, 1))
.readPatternFromBlack(1, None)
.ok_or(Exceptions::ILLEGAL_STATE)?;
if (!(IsPattern(diagonal, &PATTERN, None, 0.0, 0.0, None) != 0.0)) {
return Err(Exceptions::NOT_FOUND);
}
if (dimension < MIN_MODULES || dimension > MAX_MODULES ||
!image.isIn(PointF{left + moduleSize / 2 + (dimension - 1) * moduleSize,
top + moduleSize / 2 + (dimension - 1) * moduleSize}))
return {};
let fpWidth = (diagonal.into_iter().sum::<u16>());
let moduleSize: f32 = (fpWidth as f32) / 7.0;
let dimension = (width as f32 / moduleSize).floor() as u32;
// #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
if (dimension < MIN_MODULES
|| dimension > MAX_MODULES
|| !image.is_in(point(
left as f32 + moduleSize as f32 / 2.0 + (dimension - 1) as f32 * moduleSize,
top as f32 + moduleSize as f32 / 2.0 + (dimension - 1) as f32 * moduleSize,
)))
{
return Err(Exceptions::NOT_FOUND);
}
// 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}}};
// #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)
Ok(QRCodeDetectorResult::new(
image.Deflate(
dimension,
dimension,
top as f32 + moduleSize / 2.0,
left as f32 + moduleSize / 2.0,
moduleSize,
)?,
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 SampleMQR( image:&BitMatrix, fp:ConcentricPattern) -> Result<QRCodeDetectorResult>
{
auto fpQuad = FindConcentricPatternCorners(image, fp, fp.size, 2);
if (!fpQuad)
return {};
pub fn SampleMQR(image: &BitMatrix, fp: ConcentricPattern) -> Result<QRCodeDetectorResult> {
let Some(fpQuad) = FindConcentricPatternCorners(image, fp.p, fp.size, 2) else {
return Err(Exceptions::NOT_FOUND);
};
auto srcQuad = Rectangle(7, 7, 0.5);
let srcQuad = Quadrilateral::rectangle(7, 7, Some(0.5));
// #if defined(_MSVC_LANG) // TODO: see MSVC issue https://developercommunity.visualstudio.com/t/constexpr-object-is-unable-to-be-used-as/10035065
// static
// #else
// constexpr
// #endif
const PointI FORMAT_INFO_COORDS[] = {{0, 8}, {1, 8}, {2, 8}, {3, 8}, {4, 8}, {5, 8}, {6, 8}, {7, 8}, {8, 8},
{8, 7}, {8, 6}, {8, 5}, {8, 4}, {8, 3}, {8, 2}, {8, 1}, {8, 0}};
// #if defined(_MSVC_LANG) // TODO: see MSVC issue https://developercommunity.visualstudio.com/t/constexpr-object-is-unable-to-be-used-as/10035065
// static
// #else
// constexpr
// #endif
let FORMAT_INFO_COORDS: [Point; 17] = [
point_i(0, 8),
point_i(1, 8),
point_i(2, 8),
point_i(3, 8),
point_i(4, 8),
point_i(5, 8),
point_i(6, 8),
point_i(7, 8),
point_i(8, 8),
point_i(8, 7),
point_i(8, 6),
point_i(8, 5),
point_i(8, 4),
point_i(8, 3),
point_i(8, 2),
point_i(8, 1),
point_i(8, 0),
];
FormatInformation bestFI;
PerspectiveTransform bestPT;
let mut bestFI = FormatInformation::default();
let mut bestPT = PerspectiveTransform::quadrilateralToQuadrilateral(
srcQuad,
fpQuad.rotated_corners(Some(0), None),
)?;
for (int i = 0; i < 4; ++i) {
auto mod2Pix = PerspectiveTransform(srcQuad, RotatedCorners(*fpQuad, i));
for i in 0..4 {
// for (int i = 0; i < 4; ++i) {
let mod2Pix = PerspectiveTransform::quadrilateralToQuadrilateral(
srcQuad,
fpQuad.rotated_corners(Some(i), None),
)?;
auto check = [&](int i, bool checkOne) {
auto p = mod2Pix(centered(FORMAT_INFO_COORDS[i]));
return image.isIn(p) && (!checkOne || image.get(p));
};
let check = |i, checkOne: bool| {
let p = mod2Pix.transform_point(Point::centered(FORMAT_INFO_COORDS[i]));
return image.is_in(p) && (!checkOne || image.get_point(p));
};
// check that we see both innermost timing pattern modules
if (!check(0, true) || !check(8, false) || !check(16, true))
continue;
// check that we see both innermost timing pattern modules
if (!check(0, true) || !check(8, false) || !check(16, true)) {
continue;
}
int formatInfoBits = 0;
for (int i = 1; i <= 15; ++i)
AppendBit(formatInfoBits, image.get(mod2Pix(centered(FORMAT_INFO_COORDS[i]))));
let mut formatInfoBits = 0;
for i in 1..=15
// for (int i = 1; i <= 15; ++i)
{
AppendBit(
&mut formatInfoBits,
image.get_point(mod2Pix.transform_point(Point::centered(FORMAT_INFO_COORDS[i]))),
);
}
auto fi = FormatInformation::DecodeMQR(formatInfoBits);
if (fi.hammingDistance < bestFI.hammingDistance) {
bestFI = fi;
bestPT = mod2Pix;
}
}
let fi = FormatInformation::DecodeMQR(formatInfoBits as u32);
if (fi.hammingDistance < bestFI.hammingDistance) {
bestFI = fi;
bestPT = mod2Pix;
}
}
if (!bestFI.isValid())
return {};
if (!bestFI.isValid()) {
return Err(Exceptions::NOT_FOUND);
}
const int dim = Version::DimensionOfVersion(bestFI.microVersion, true);
let dim: u32 = Version::DimensionOfVersion(bestFI.microVersion, true);
// check that we are in fact not looking at a corner of a non-micro QRCode symbol
// we accept at most 1/3rd black pixels in the quite zone (in a QRCode symbol we expect about 1/2).
int blackPixels = 0;
for (int i = 0; i < dim; ++i) {
auto px = bestPT(centered(PointI{i, dim}));
auto py = bestPT(centered(PointI{dim, i}));
blackPixels += (image.isIn(px) && image.get(px)) + (image.isIn(py) && image.get(py));
}
if (blackPixels > 2 * dim / 3)
return {};
// check that we are in fact not looking at a corner of a non-micro QRCode symbol
// we accept at most 1/3rd black pixels in the quite zone (in a QRCode symbol we expect about 1/2).
let mut blackPixels = 0;
for i in 0..dim {
// for (int i = 0; i < dim; ++i) {
let px = bestPT.transform_point(Point::centered(point_i(i, dim)));
let py = bestPT.transform_point(Point::centered(point_i(dim, i)));
blackPixels += u32::from((image.is_in(px) && image.get_point(px)))
+ u32::from((image.is_in(py) && image.get_point(py)));
}
if (blackPixels > 2 * dim / 3) {
return Err(Exceptions::NOT_FOUND);
}
return SampleGrid(image, dim, dim, bestPT);
}
let grid_sampler = DefaultGridSampler::default();
Ok(QRCodeDetectorResult::new(
grid_sampler.sample_grid(
image,
dim,
dim,
&[SamplerControl {
p0: point_i(0, dim as u32),
p1: point_i(0, dim as u32),
transform: bestPT,
}],
)?,
Vec::default(),
))
// SampleGrid(image, dim, dim, bestPT)
}