cornerstone-wado-image-loader
Version:
Cornerstone Image Loader for DICOM WADO-URI and WADO-RS
111 lines (78 loc) • 5.99 kB
HTML
<html lang="en">
<head>
<meta charset="utf-8">
<title>shared/calculateMinMax.js - Documentation</title>
<script src="scripts/prettify/prettify.js"></script>
<script src="scripts/prettify/lang-css.js"></script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify.css">
<link type="text/css" rel="stylesheet" href="styles/jsdoc.css">
<script src="scripts/nav.js" defer></script>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<input type="checkbox" id="nav-trigger" class="nav-trigger" />
<label for="nav-trigger" class="navicon-button x">
<div class="navicon"></div>
</label>
<label for="nav-trigger" class="overlay"></label>
<nav >
<h2><a href="index.html">Home</a></h2><h3>Global</h3><ul><li><a href="global.html#addTask">addTask</a></li><li><a href="global.html#arrayBufferToString">arrayBufferToString</a></li><li><a href="global.html#cacheSizeInBytes">cacheSizeInBytes</a></li><li><a href="global.html#cancelTask">cancelTask</a></li><li><a href="global.html#decodeAsync">decodeAsync</a></li><li><a href="global.html#decodeImageFrame">decodeImageFrame</a></li><li><a href="global.html#extractOrientationFromDataset">extractOrientationFromDataset</a></li><li><a href="global.html#extractOrientationFromMetadata">extractOrientationFromMetadata</a></li><li><a href="global.html#extractOrientationFromNMMultiframeDataset">extractOrientationFromNMMultiframeDataset</a></li><li><a href="global.html#extractOrientationFromNMMultiframeMetadata">extractOrientationFromNMMultiframeMetadata</a></li><li><a href="global.html#extractPositionFromDataset">extractPositionFromDataset</a></li><li><a href="global.html#extractPositionFromMetadata">extractPositionFromMetadata</a></li><li><a href="global.html#extractPositionFromNMMultiframeDataset">extractPositionFromNMMultiframeDataset</a></li><li><a href="global.html#extractPositionFromNMMultiframeMetadata">extractPositionFromNMMultiframeMetadata</a></li><li><a href="global.html#extractSliceThicknessFromDataset">extractSliceThicknessFromDataset</a></li><li><a href="global.html#extractSpacingFromDataset">extractSpacingFromDataset</a></li><li><a href="global.html#framesAreFragmented">framesAreFragmented</a></li><li><a href="global.html#getImageTypeSubItemFromDataset">getImageTypeSubItemFromDataset</a></li><li><a href="global.html#getImageTypeSubItemFromMetadata">getImageTypeSubItemFromMetadata</a></li><li><a href="global.html#getMinMax">getMinMax</a></li><li><a href="global.html#getNumberString">getNumberString</a></li><li><a href="global.html#getNumberValues">getNumberValues</a></li><li><a href="global.html#getStatistics">getStatistics</a></li><li><a href="global.html#getTransferSyntaxForContentType">getTransferSyntaxForContentType</a></li><li><a href="global.html#getUncompressedImageFrame">getUncompressedImageFrame</a></li><li><a href="global.html#getValue">getValue</a></li><li><a href="global.html#handleMessageFromWorker">handleMessageFromWorker</a></li><li><a href="global.html#handler">handler</a></li><li><a href="global.html#initialize">initialize</a></li><li><a href="global.html#loadCodecs">loadCodecs</a></li><li><a href="global.html#loadWebWorkerTask">loadWebWorkerTask</a></li><li><a href="global.html#registerLoaders">registerLoaders</a></li><li><a href="global.html#registerTaskHandler">registerTaskHandler</a></li><li><a href="global.html#removeAFromRGBA">removeAFromRGBA</a></li><li><a href="global.html#setPixelDataType">setPixelDataType</a></li><li><a href="global.html#setTaskPriority">setTaskPriority</a></li><li><a href="global.html#spawnWebWorker">spawnWebWorker</a></li><li><a href="global.html#startTaskOnWebWorker">startTaskOnWebWorker</a></li><li><a href="global.html#terminate">terminate</a></li><li><a href="global.html#unpackBinaryFrame">unpackBinaryFrame</a></li></ul>
</nav>
<div id="main">
<h1 class="page-title">shared/calculateMinMax.js</h1>
<section>
<article>
<pre class="prettyprint source linenums"><code>import getMinMax from './getMinMax.js';
/**
* Check the minimum and maximum values in the imageFrame pixel data
* match with the provided smallestPixelValue and largestPixelValue metaData.
*
* If 'strict' is true, log to the console a warning if these values do not match.
* Otherwise, correct them automatically.
*
* @param {Object} imageFrame
* @param {Boolean} strict If 'strict' is true, log to the console a warning if these values do not match.
* Otherwise, correct them automatically.Default is true.
*/
export default function calculateMinMax(imageFrame, strict = true) {
const minMax = getMinMax(imageFrame.pixelData);
const mustAssign = !(
isNumber(imageFrame.smallestPixelValue) &&
isNumber(imageFrame.largestPixelValue)
);
if (strict === true && !mustAssign) {
if (imageFrame.smallestPixelValue !== minMax.min) {
console.warn(
'Image smallestPixelValue tag is incorrect. Rendering performance will suffer considerably.'
);
}
if (imageFrame.largestPixelValue !== minMax.max) {
console.warn(
'Image largestPixelValue tag is incorrect. Rendering performance will suffer considerably.'
);
}
} else {
imageFrame.smallestPixelValue = minMax.min;
imageFrame.largestPixelValue = minMax.max;
}
}
function isNumber(numValue) {
return typeof numValue === 'number';
}
</code></pre>
</article>
</section>
</div>
<br class="clear">
<footer>
Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.6.7</a> using the <a href="https://github.com/clenemt/docdash">docdash</a> theme.
</footer>
<script>prettyPrint();</script>
<script src="scripts/polyfill.js"></script>
<script src="scripts/linenumber.js"></script>
</body>
</html>