MagTek Excella Windows API99875313 - Manual (Page 55)

Section 4. Key-Value Pairs
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Table 4-4a. Section = ImageOptions (Optional)
Key Key Description Value Value Description
JPEGQC* Compression quality number for
color images Numeric
string Quality number for color images.
The valid range is 1-100.
JPEGQG* Compression quality number for
grayscale images Numeric
string Quality number for grayscale
images. The valid range is 1-100.
* The default value for this key is 50. Changing the default value of this key affects the image
quality and size of a JPEG file.
*For higher quality images, set the value of this key to a higher number. The file size also
increases when the quality number increases. This key is supported by Excella STX only.
Table 4-5 lists the current valid combination of ImageColor, Resolution, Compression, and
FileType.
Table 4-5. Possible Combination Values for Image Options
ImageColor Resolution Compression FileType
B/W 200x200 NONE TIFF
B/W 200x200 GROUP4 TIFF
GRAY8 100x100 JPEG JPG
GRAY8 200x200 JPEG JPG
GRAY8 100x100 NONE BMP
GRAY8 200x200 NONE BMP
Example for setting up ImageOptions key-value pairs to obtain 4 Images
In the following example we are requesting four images:
1. Gray scale with resolution 100x100 for the FRONT of the document
2. Gray scale with resolution 100x100 for the BACK of the document
3. BW for the FRONT of the document
4. BW for the BACK of the document
Table 4-6. Example for Section ImageOptions – 1 through 4
Number 4
ImageColor1 GRAY8
Resolution1 100x100
Compression1 JPEG
FileType1 JPG
ImageSide1 FRONT
ImageColor2 GRAY8
Resolution2 100x100
Compression2 JPEG
FileType2 JPG
ImageSide2 BACK
ImageColor3 BW
Resolution3 200x200