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#49: configuration of i2of5 reader; still issues with high-density

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This commit is contained in:
Christoph Oberhofer
2015-07-28 22:19:33 +02:00
parent f99b4a3e64
commit 86f085039e
8 changed files with 178 additions and 101 deletions
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src/barcode_decoder.js
+2 -2
View File
@@ -101,8 +101,8 @@ define([
}
_barcodeReaders.push(new readers[reader](config));
});
console.log("Registered Readers:" + _barcodeReaders
.map(function(reader) {return reader.FORMAT;})
console.log("Registered Readers: " + _barcodeReaders
.map(function(reader) {return JSON.stringify({format: reader.FORMAT, config: reader.config});})
.join(', '));
}
src/i2of5_reader.js
+22 -7
View File
@@ -3,14 +3,29 @@
define(
[
"./barcode_reader"
"./barcode_reader",
"./html_utils"
],
function(BarcodeReader) {
function(BarcodeReader, HTMLUtils) {
"use strict";
function I2of5Reader(opts) {
opts = HTMLUtils.mergeObjects(getDefaulConfig(), opts);
BarcodeReader.call(this, opts);
this.barSpaceRatio = [1, 1];
if (opts.normalizeBarSpaceWidth) {
this.SINGLE_CODE_ERROR = 0.38;
this.AVG_CODE_ERROR = 0.09;
}
}
function getDefaulConfig() {
var config = {};
Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) {
config[key] = I2of5Reader.CONFIG_KEYS[key]['default'];
});
return config;
}
var N = 1,
@@ -31,10 +46,10 @@ define(
[W, N, N, W, N],
[N, W, N, W, N]
]},
SINGLE_CODE_ERROR: {value: 0.50},
AVG_CODE_ERROR: {value: 0.14},
MAX_CORRECTION_FACTOR: {value: 1.9},
FORMAT: {value: "i2of5", writeable: false}
SINGLE_CODE_ERROR: {value: 0.78, writable: true},
AVG_CODE_ERROR: {value: 0.38, writable: true},
MAX_CORRECTION_FACTOR: {value: 5},
FORMAT: {value: "i2of5"}
};
I2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties);
@@ -51,7 +66,7 @@ define(
for (i = 0; i < counter.length; i++) {
counterSum[i % 2] += counter[i];
codeSum[i % 2] += code[i]
codeSum[i % 2] += code[i];
}
correction[0] = codeSum[0] / counterSum[0];
correction[1] = codeSum[1] / counterSum[1];