Mitsubishi P91DW User Manual download pdf (Page 37)

Alpha Innotech User’s Manual, version 4

2-6

The Reverse Button

The Reverse button inverts the gray levels of the displayed image, converting a positive

image to negative, or vice versa. For instance, an image with black bands on a white

background is converted into an image with white bands on a black background by

simply clicking the Reverse button. Clicking the button a second time returns the image

to its original form.

Original Image Reversed Image

Note: Reversing an image changes the way it is displayed on the screen, but does

not change the quantitative data. For example, the bands in the above gel have the

same density, regardless of whether the gel is displayed as white bands on a black

background or black bands on a light background. For information on reversing

pixel values, see Invert in Chapters 4 and 5.

The Grid Button

The Grid button provides an on-screen grid after image acquisition to check for proper

sample alignment.

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Mitsubishi P91DW User Manual Page 37