Introduction to Image Processing. Image Processing is the steps of using image processing tools to covert different kinds of image sources into different.

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Presentation transcript:

Introduction to Image Processing

Image Processing is the steps of using image processing tools to covert different kinds of image sources into different file formats The basic characteristic of an image ： 1) File Size 2) Image Size 3) Resolution 4) Image format

File Size The image file is saved as different formats. These differences are determined by the file format and the compression rate. bmpgifjpgtif 36 Kb13.9 Kb8 Kb52.7 Kb File format File size

Image Size Image as seen on the computer are measured by pixel 。 Example 450X400 means there are the height of the file is 4oo pixels and the width is 450 pixels 450 pixels 400 pixels

Resolution Resolution reflects the image quality and it is usually indicated by dpi(dots/inch or pixel/inch) 72 dpi300 dpi

Image format Image format can be divided into 2 major categories, “ Bitmap” and “Vector” 。 “ Bitmap” is an image that made up of dots ， and “Vector” image are described by mathematical formulas 。 Can you tell the differences ？ Bitmap Vector