Blackberry 1902G Guia do Utilizador descarregar pdf (Página 223)

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8F BMP format

H - Height of Signature Capture Area

The height of the signature capture area must be measured in inches

divided by .01. In the example, the height of the area to be captured is 3/8

inch, resulting in a value of H = .375/0.01 = 37.5.

K - Gamma Correction

Gamma measures the brightness of midtone values produced by the

image. You can brighten or darken an image using gamma correction. A

higher gamma correction yields an overall brighter image. The lower the

setting, the darker the image. The optimal setting for text images is 50K.

0K Gamma correction off

(default)

50K Apply gamma correction for brightening typical document image

K Apply gamma correction factor

(

= 1-255)

R - Resolution of Signature Capture Area

The resolution is the number of pixels that the scanner outputs per each

minimum bar width. The higher the value for R, the higher the quality of the

image, but also the larger the file size. Values begin at 1000. The scanner

automatically inserts a decimal point between the first and second digit.

Example: IMGBOX245w37h55y.

Example of Gamma Correction

set to 50K:

Example of Gamma

Correction set to 0K:

Example of Gamma Correction

set to 255K:

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Blackberry 1902G Guia do Utilizador Página 223