Levenhuk C800 NG Digital Camera, USB 2.0 - Manual (Page 69)

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11 Image
11.1 Mode
11.1.1 Color Quantize•••
The Color Quantize••• command is widely used to change the image bit. ToupView
supports the mutual changes among 1, 4, 8, and 24 bit images.
When the dialog is opened, the default checked color bit is the image's color bit.
Check the desired bit and click
OK to end the command. The image will converted to
the selected color bits.
11.1.2 Gray Scale
Choose Gray Scale command to convert a color image (true color image or index
color image) to a gray scale image. If the original image is 24 bit, the new image is
8 bit. Otherwise the bit of the image will not be modified.
11.2 Adjust
11.2.1 Curve•••
Choose Curve••• dialog to adjust the entire tonal range of an image. But instead of
making adjustments using only three variables (highlight, shadow, midtone), one
can adjust any point on the curve along a 0-255 scale while keeping up to 15 other
values constant. One can also use
Curve to make precise adjustments for individual
color channels on an image.
The horizontal axis of the graph represents the original intensity values of the pixels
(
Input levels).
The vertical axis represents the new color values ( Output levels). In the default
diagonal line, all of the pixels have identical Input and Output values.