Image Cropping/Shipping Example
The figure below illustrates the cropping of an area (shaded) of the image. The cropped area is shipped and stored as a one bit, black and white JPEG. The cropped area would be 270 pixels by 290 pixels with the following designations: Top = 000; Bottom = 270; Left = 350; Right = 640.
The command string would be IMGSHP000T270B350L640R6F1D.
0 |
| 350 |
| 640 | |
| Top |
|
210 |
| Cropped Area |
| Bottom | Default |
|
| |
|
| Center |
270 |
|
|
| Left |
|
| Right |
|
480 |
|
|
Intelligent Signature Capture Commands
Intelligent signature capture is a method to ship only the part of an image to the host application. This method is reduces transfer time and file size while making signature capture easy.
Below is an example of an intelligent signature capture application. In this example, the operator reads the bar code, which is then transmitted to the host application. Upon the receipt of the bar code data, the host application sends the “IMGBOX” command, which tells the scanner to output only the area of the image corresponding to the signature capture box. The scanner also automatically adjusts for aspect ratio and distortion issues that arise due to scanner skew with respect to the bar code.
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