AmScope DM745-HDM11, Руководство пользователя

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DM745-HDM11 User Guide
Page 17
Image Exposure
Manual Exposure
The brightness setting is used to manually control the amount of light captured by the imaging device. Manual control is
preferable when imaging light or dark specimens which do not appear properly exposed when using auto exposure.
Auto Exposure
Auto exposure automatically adjusts the brightness of the image by calculating an average of light levels in the viewable
area. The process attempts to adjust the brightness level until the average is approximately middle grey.
Color
White Balance
The color of an object is influenced by the color of light reflecting off of it or passing through it. Different light sources
produce light with different color-biases. Common examples are incandescent lamps which typically produce warm
colors compared to fluorescent or LED lamps which produce cooler colors. This sort of bias is referred to as color tem -
perature. Due to this phenomenon, a white object may appear slightly yellow in morning sunlight, and slightly blue in
afternoon shade. To compensate for these variations, digital imaging devices can process images using what is called
“white balance.” The white balance process shifts colors based on the color of the light source, with the goal of produc -
ing a more neutral white or grey.