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@ -1240,6 +1240,39 @@ define(
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throw BarcodeReader.PatternNotFoundException;
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};
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EANReader.prototype._findStart = function() {
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var self = this,
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leadingWhitespaceStart,
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offset = self._nextSet(self._row),
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startInfo;
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while(!startInfo) {
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startInfo = self._findPattern(self.START_PATTERN, offset);
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leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start);
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if (leadingWhitespaceStart >= 0) {
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if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {
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return startInfo;
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}
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}
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offset = startInfo.end;
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startInfo = null;
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}
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};
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EANReader.prototype._findEnd = function(offset) {
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var self = this,
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trailingWhitespaceEnd,
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endInfo = self._findPattern(self.STOP_PATTERN, offset);
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trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start);
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if (trailingWhitespaceEnd < self._row.length) {
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if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {
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return endInfo;
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}
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}
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return null;
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};
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EANReader.prototype._decode = function() {
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var startInfo,
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self = this,
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@ -1250,7 +1283,7 @@ define(
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decodedCodes = [];
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try {
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startInfo = self._findPattern(self.START_PATTERN);
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startInfo = self._findStart();
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code = {
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code : startInfo.code,
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start : startInfo.start,
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@ -1288,7 +1321,11 @@ define(
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result.push(code.code);
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}
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code = self._findPattern(self.STOP_PATTERN, code.end);
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code = self._findEnd(code.end);
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if (code === null){
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return null;
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}
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decodedCodes.push(code);
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// Checksum
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@ -4724,6 +4761,71 @@ define('cv_utils',['cluster', 'glMatrixAddon', "array_helper"], function(Cluster
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return rgb;
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};
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CVUtils._computeDivisors = function(n) {
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var largeDivisors = [],
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divisors = [],
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i;
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for (i = 1; i < Math.sqrt(n) + 1; i++) {
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if (n % i === 0) {
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divisors.push(i);
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if (i !== n/i) {
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largeDivisors.unshift(Math.floor(n/i));
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}
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}
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}
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return divisors.concat(largeDivisors);
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};
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CVUtils._computeIntersection = function(arr1, arr2) {
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var i = 0,
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j = 0,
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result = [];
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while (i < arr1.length && j < arr2.length) {
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if (arr1[i] === arr2[j]) {
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result.push(arr1[i]);
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i++;
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j++;
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} else if (arr1[i] > arr2[j]) {
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j++;
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} else {
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i++;
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}
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}
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return result;
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};
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CVUtils.calculatePatchSize = function(patchSize, imgSize) {
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var divisorsX = this._computeDivisors(imgSize.x),
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divisorsY = this._computeDivisors(imgSize.y),
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wideSide = Math.max(imgSize.x, imgSize.y),
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common = this._computeIntersection(divisorsX, divisorsY),
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nrOfPatchesMap = {
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"x-small": 60,
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"small": 32,
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"medium": 20,
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"large": 15,
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"x-large": 10
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},
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nrOfPatches = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium,
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i = 0,
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found = common[Math.floor(common.length/2)],
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desiredPatchSize = wideSide/nrOfPatches;
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while(i < (common.length - 1) && common[i] < desiredPatchSize) {
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i++;
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}
|
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if (i > 0) {
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|
|
if (Math.abs(common[i] - desiredPatchSize) > Math.abs(common[i-1] - desiredPatchSize)) {
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|
|
found = common[i-1];
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|
|
} else {
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|
found = common[i];
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}
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}
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|
|
return {x: found, y: found};
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};
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|
return (CVUtils);
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|
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});
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|
@ -5736,10 +5838,7 @@ function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, I
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|
|
_currentImageWrapper = _inputImageWrapper;
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|
|
}
|
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|
|
_patchSize = {
|
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|
|
x : _config.patchSize * ( _config.halfSample ? 0.5 : 1),
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|
|
y : _config.patchSize * ( _config.halfSample ? 0.5 : 1)
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|
};
|
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|
|
_patchSize = CVUtils.calculatePatchSize(_config.patchSize, _currentImageWrapper.size);
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|
|
_numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0;
|
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|
|
_numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0;
|
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|
|
@ -6322,23 +6421,23 @@ define('bresenham',[],function() {
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extrema = [],
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currentDir,
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dir,
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|
|
threshold = (max - min) / 8,
|
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|
|
threshold = (max - min) / 12,
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|
|
rThreshold = -threshold,
|
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|
|
i,
|
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|
|
|
j;
|
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|
|
|
|
|
|
|
|
// 1. find extrema
|
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|
|
currentDir = line[0] > center ? Slope.DIR.DOWN : Slope.DIR.UP;
|
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|
|
|
currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN;
|
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|
|
|
extrema.push({
|
|
|
|
|
pos : 0,
|
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|
|
|
val : line[0]
|
|
|
|
|
});
|
|
|
|
|
for ( i = 0; i < line.length - 1; i++) {
|
|
|
|
|
slope = (line[i + 1] - line[i]);
|
|
|
|
|
if (slope < rThreshold) {
|
|
|
|
|
dir = Slope.DIR.UP;
|
|
|
|
|
} else if (slope > threshold) {
|
|
|
|
|
if (slope < rThreshold && line[i + 1] < (center*1.5)) {
|
|
|
|
|
dir = Slope.DIR.DOWN;
|
|
|
|
|
} else if (slope > threshold && line[i + 1] > (center*0.5)) {
|
|
|
|
|
dir = Slope.DIR.UP;
|
|
|
|
|
} else {
|
|
|
|
|
dir = currentDir;
|
|
|
|
|
}
|
|
|
|
|
@ -7060,18 +7159,25 @@ define('barcode_decoder',["bresenham", "image_debug", 'code_128_reader', 'ean_re
|
|
|
|
|
* @param {Number} angle
|
|
|
|
|
*/
|
|
|
|
|
function getExtendedLine(line, angle, ext) {
|
|
|
|
|
var extension = {
|
|
|
|
|
y : ext * Math.sin(angle),
|
|
|
|
|
x : ext * Math.cos(angle)
|
|
|
|
|
function extendLine(amount) {
|
|
|
|
|
var extension = {
|
|
|
|
|
y : amount * Math.sin(angle),
|
|
|
|
|
x : amount * Math.cos(angle)
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
line[0].y -= extension.y;
|
|
|
|
|
line[0].x -= extension.x;
|
|
|
|
|
line[1].y += extension.y;
|
|
|
|
|
line[1].x += extension.x;
|
|
|
|
|
|
|
|
|
|
line[0].y -= extension.y;
|
|
|
|
|
line[0].x -= extension.x;
|
|
|
|
|
line[1].y += extension.y;
|
|
|
|
|
line[1].x += extension.x;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// check if inside image
|
|
|
|
|
if (!inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0)) {
|
|
|
|
|
extendLine(ext);
|
|
|
|
|
while (ext > 1 && !inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0)) {
|
|
|
|
|
ext -= Math.floor(ext/2);
|
|
|
|
|
extendLine(-ext);
|
|
|
|
|
}
|
|
|
|
|
if (ext <= 1) {
|
|
|
|
|
return null;
|
|
|
|
|
}
|
|
|
|
|
return line;
|
|
|
|
|
@ -7151,6 +7257,12 @@ define('barcode_decoder',["bresenham", "image_debug", 'code_128_reader', 'ean_re
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
function getLineLength(line) {
|
|
|
|
|
return Math.sqrt(
|
|
|
|
|
Math.pow(Math.abs(line[1].y - line[0].y), 2) +
|
|
|
|
|
Math.pow(Math.abs(line[1].x - line[0].x), 2));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* With the help of the configured readers (Code128 or EAN) this function tries to detect a
|
|
|
|
|
* valid barcode pattern within the given area.
|
|
|
|
|
@ -7161,15 +7273,17 @@ define('barcode_decoder',["bresenham", "image_debug", 'code_128_reader', 'ean_re
|
|
|
|
|
var line,
|
|
|
|
|
lineAngle,
|
|
|
|
|
ctx = _canvas.ctx.overlay,
|
|
|
|
|
result;
|
|
|
|
|
result,
|
|
|
|
|
lineLength;
|
|
|
|
|
|
|
|
|
|
if (config.drawBoundingBox && ctx) {
|
|
|
|
|
ImageDebug.drawPath(box, {x: 0, y: 1}, ctx, {color: "blue", lineWidth: 2});
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
line = getLine(box);
|
|
|
|
|
lineLength = getLineLength(line);
|
|
|
|
|
lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x);
|
|
|
|
|
line = getExtendedLine(line, lineAngle, 10);
|
|
|
|
|
line = getExtendedLine(line, lineAngle, Math.floor(lineLength*0.07));
|
|
|
|
|
if(line === null){
|
|
|
|
|
return null;
|
|
|
|
|
}
|
|
|
|
|
@ -7379,18 +7493,18 @@ define('config',[],function(){
|
|
|
|
|
decoder:{
|
|
|
|
|
drawBoundingBox: false,
|
|
|
|
|
showFrequency: false,
|
|
|
|
|
drawScanline: true,
|
|
|
|
|
showPattern: true,
|
|
|
|
|
drawScanline: false,
|
|
|
|
|
showPattern: false,
|
|
|
|
|
readers: [
|
|
|
|
|
'code_128_reader'
|
|
|
|
|
]
|
|
|
|
|
},
|
|
|
|
|
locator: {
|
|
|
|
|
halfSample: true,
|
|
|
|
|
patchSize: 64,
|
|
|
|
|
showCanvas: true,
|
|
|
|
|
patchSize: "medium", // x-small, small, medium, large, x-large
|
|
|
|
|
showCanvas: false,
|
|
|
|
|
showPatches: false,
|
|
|
|
|
showFoundPatches: true,
|
|
|
|
|
showFoundPatches: false,
|
|
|
|
|
showSkeleton: false,
|
|
|
|
|
showLabels: false,
|
|
|
|
|
showPatchLabels: false,
|
|
|
|
|
@ -7629,8 +7743,33 @@ define('camera_access',["html_utils"], function(HtmlUtils) {
|
|
|
|
|
/* global define, vec2 */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
define('quagga',["code_128_reader", "ean_reader", "input_stream", "image_wrapper", "barcode_locator", "barcode_decoder", "frame_grabber", "html_utils", "config", "events", "camera_access", "image_debug"],
|
|
|
|
|
function(Code128Reader, EANReader, InputStream, ImageWrapper, BarcodeLocator, BarcodeDecoder, FrameGrabber, HtmlUtils, _config, Events, CameraAccess, ImageDebug) {
|
|
|
|
|
define('quagga',[
|
|
|
|
|
"code_128_reader",
|
|
|
|
|
"ean_reader",
|
|
|
|
|
"input_stream",
|
|
|
|
|
"image_wrapper",
|
|
|
|
|
"barcode_locator",
|
|
|
|
|
"barcode_decoder",
|
|
|
|
|
"frame_grabber",
|
|
|
|
|
"html_utils",
|
|
|
|
|
"config",
|
|
|
|
|
"events",
|
|
|
|
|
"camera_access",
|
|
|
|
|
"image_debug",
|
|
|
|
|
"cv_utils"],
|
|
|
|
|
function(Code128Reader,
|
|
|
|
|
EANReader,
|
|
|
|
|
InputStream,
|
|
|
|
|
ImageWrapper,
|
|
|
|
|
BarcodeLocator,
|
|
|
|
|
BarcodeDecoder,
|
|
|
|
|
FrameGrabber,
|
|
|
|
|
HtmlUtils,
|
|
|
|
|
_config,
|
|
|
|
|
Events,
|
|
|
|
|
CameraAccess,
|
|
|
|
|
ImageDebug,
|
|
|
|
|
CVUtils) {
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
var _inputStream,
|
|
|
|
|
@ -7712,17 +7851,23 @@ function(Code128Reader, EANReader, InputStream, ImageWrapper, BarcodeLocator, Ba
|
|
|
|
|
function checkImageConstraints() {
|
|
|
|
|
var patchSize,
|
|
|
|
|
width = _inputStream.getWidth(),
|
|
|
|
|
height = _inputStream.getHeight();
|
|
|
|
|
height = _inputStream.getHeight(),
|
|
|
|
|
halfSample = _config.locator.halfSample,
|
|
|
|
|
size = {
|
|
|
|
|
x: Math.floor(width * (halfSample ? 0.5 : 1)),
|
|
|
|
|
y: Math.floor(height * (halfSample ? 0.5 : 1))
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
if (_config.locate) {
|
|
|
|
|
patchSize = _config.locator.patchSize * ( _config.locator.halfSample ? 0.5 : 1);
|
|
|
|
|
if ((width % patchSize) === 0 && (height % patchSize) === 0) {
|
|
|
|
|
patchSize = CVUtils.calculatePatchSize(_config.locator.patchSize, size);
|
|
|
|
|
console.log("Patch-Size: " + JSON.stringify(patchSize));
|
|
|
|
|
if ((width % patchSize.x) === 0 && (height % patchSize.y) === 0) {
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
throw new Error("Image dimensions do not comply with the current settings: Width (" +
|
|
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width + " )and height (" + height +
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") must a multiple of " + patchSize);
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") must a multiple of " + patchSize.x);
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}
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function canRecord(cb) {
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@ -8021,17 +8166,18 @@ function(Code128Reader, EANReader, InputStream, ImageWrapper, BarcodeLocator, Ba
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},
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canvas : _canvasContainer,
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decodeSingle : function(config, resultCallback) {
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config.inputStream = {
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type : "ImageStream",
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src : config.src,
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sequence : false,
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size: 800
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};
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config.numOfWorkers = 0;
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config.locator = {
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halfSample: false,
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patchSize: 40
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};
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config = HtmlUtils.mergeObjects({
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inputStream: {
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type : "ImageStream",
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sequence : false,
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size: 800,
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src: config.src
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},
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numOfWorkers: 1,
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locator: {
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halfSample: false
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}
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}, config);
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this.init(config, function() {
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Events.once("detected", function(result) {
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_stopped = true;
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Christoph Oberhofer
10 years ago
