Scanning Electron Microscope
EM-30PLUS Operating Manual
38
2.8.3 Image Correction
Users correct the values of Contrast, Brightness, and Gamma in order to acquire more clear
images before photo scanning Photo.
Contrast: It adjusts the visibility by contrasting images. If you adjust Contrast value
rather than Brightness value, you can acquire more clear and bright images.
Brightness: It adjusts the brightness of images.
Gamma: You can adjust images more naturally by correcting gamma value that makes
bright part brighter and dark part darker. Use this function when you cannot acquire
clear images even if you adjusted the values of Contrast and Brightness.
When specific part of images are excessively bright, correct them, adjusting overall
balance by decreasing the contrast value and increasing brightness value and then
adjusting gamma value.
2.8.4 Image Shift
During image work, you can move electron beam to X, Y axis or rotate the electron beam.
Image Shift: It moves the direction of electron beam on the basis of X, Y axis and
acquires images. It is used when moving images minutely with the specimen enlarged
in high magnification. When using Image Shift, Image Shift item flickers on the right
above of screen.
At this time, if you click appropriate items(X-shift, Y-shift), it moves to the starting point.
Beam Rotation: It moves in the reverse direction of Stage movement depending on
rotation angle of images.
(Rotation range: ±360 degrees)
