UnknownObject/quaggaJS
1
0
Fork 0
mirror of https://github.com/serratus/quaggaJS.git synced 2026-08-12 21:21:42 +08:00
Code Issues Packages Projects Releases Wiki Activity

Making patch-size configurable; Added Image-Dimensions constraint

Browse Source
This commit is contained in:
Christoph Oberhofer
2015-04-20 21:44:41 +02:00
parent 74e2c8d447
commit 178b5b0a4b
3 changed files with 24 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/barcode_locator.js
+2 -2
View File
@@ -40,8 +40,8 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
}
_patchSize = {
x : 16 * ( _config.halfSample ? 1 : 2),
y : 16 * ( _config.halfSample ? 1 : 2)
x : _config.patchSize * ( _config.halfSample ? 0.5 : 1),
y : _config.patchSize * ( _config.halfSample ? 0.5 : 1)
};
_numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0;
src/config.js
+1
View File
@@ -31,6 +31,7 @@ define(function(){
},
locator: {
halfSample: true,
patchSize: 32,
showCanvas: false,
showPatches: false,
showFoundPatches: false,
src/quagga.js
+21
View File
@@ -82,7 +82,24 @@ function(Code128Reader, EANReader, InputStream, ImageWrapper, BarcodeLocator, Ba
_inputStream.addEventListener("canrecord", canRecord.bind(undefined, cb));
}
function checkImageConstraints() {
var patchSize,
width = _inputStream.getWidth(),
height = _inputStream.getHeight();
if (_config.locate) {
patchSize = _config.locator.patchSize * ( _config.locator.halfSample ? 0.5 : 1);
if ((width % patchSize) === 0 && (height % patchSize) === 0) {
return true;
}
}
throw new Error("Image dimensions do not comply with the current settings: Width (" +
width + " )and height (" + height +
") must a multiple of " + patchSize);
}
function canRecord(cb) {
checkImageConstraints();
initCanvas();
_framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image);
initConfig();
@@ -384,6 +401,10 @@ function(Code128Reader, EANReader, InputStream, ImageWrapper, BarcodeLocator, Ba
size: 800
};
config.numOfWorkers = 1;
config.locator = {
halfSample: false,
patchSize: 25
};
this.init(config, function() {
Events.once("detected", function(result) {
_stopped = true;