Mitsubishi P91DW User Manual download pdf (Page 33)

Alpha Innotech User’s Manual, version 4

2-2

2.1 Contrast Adjustment

The Contrast Adjustment window allows for the best visualization possible of a sample

utilizing the black, white, and gamma adjustments, as well as, image reverse and auto

contrast.

The image on the screen is made up of picture elements (pixels) in an array. Each pixel

is assigned a brightness (or a gray scale value) level between black and white. A very

bright image has most of its pixels registering high gray level values and conversely, a

very dark image has most pixels registering low gray level values (approaching zero).

The distribution of these gray values to the image is determined by the Contrast

Adjustment Controls. These controls regulate the Black level, White level, and

Gamma setting (brightness linearity), allowing adjustment of the display to obtain the

best image possible.

Note: These enhancement features modify the image display on the monitor only,

and do not change the original quantitative data.

AlphaEaseFC software can also import RGB color images. The AlphaEaseFC Software

automatically detects this process and the Contrast Adjustment tools are configured for

color image adjustments.

An image can be enhanced using these tools and then saved as a Modified file for

publications. However, to preserve the original image information, it is recommended

that the file be saved as a different file name when using the save modified.

Using the Contrast Adjustment Tools for Grayscale Images

There are three sliding scales found in the image control area to the right of the image.

Below each scale is a box displaying a number that corresponds to the position of the

slider. By adjusting these sliding scales, the image display can be optimized.

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Mitsubishi P91DW User Manual Page 33