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<html>
<head>
<meta http-equiv="Content-Language" content="en-us">
<meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>Processing</title>
<link rel="stylesheet" type="text/css" href="../style.css">
</head>
<body>
<h1>Image Processing Overview</h1>
<p>We use the simpliest model possible, a function with input data, output
data and control parameters. </p>
<p>The operations have usually one or more input images, and one or more
output images. We avoid implementing in-place operations, but many
operations can use the same data for input and output. The data type, color
mode and size of the images depends on the operation. Sometimes the operations
can change the data type to increase the precision of the results, but
normally only a few operations will change the size (resize and geometric) and
color mode (color conversion). All of these details are described in each
function documentation, check before using them.</p>
<p>There is no ROI (Region Of Interest) management, but you can <strong>
imProcessCrop</strong>, <strong>imProcess</strong>*,
then <strong>imProcessInsert</strong> the result in the original image.</p>
<p>The image data of the output image is assumed to be zero before any
operation. This is always true after creating a new image, but if you are
reusing an image for several operation use <strong>imImageClear</strong> to zero
the image data between operations.</p>
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