Leader LT4610-SER01, Инструкция по эксплуатации

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20. LOGO APP
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● Threshold
The threshold represents the intensity (Y). If we assume R, G, and B to take on values
between 0 and 255, it can be derived from the following formula.
Y = 0.212*R + 0.701*G + 0.087*B
For example, if the thresholds are set as shown in the above figure, Logo App converts
data according to the following rules.
• Intensities 0 to 63 are converted to level 0 and displayed at intensity 63.
• Intensities 64 to 127 are converted to level 1 and displayed at intensity 127.
• Intensities 128 to 191 are converted to level 2 and displayed at intensity 191.
• Intensities 192 to 255 are converted to level 3 and displayed at intensity 255.
Conversion Example
● Description of the Level Threshold Settings Dialog Box
Item Description
Default The thresholds are reset to the following values.
Level 3: 192 to 255
Level 2: 128 to 191
Level 1: 64 to 127
Level 0: 0 to 63
Refresh The result of the conversion by applying the specified thresholds is displayed
in the main window.
The values are not applied until you click Apply.
Apply The values are applied, and the Level Threshold Settings dialog box closes.
Cancel The values are canceled, and the Level Threshold Settings dialog box closes.
6. Click Apply to apply the settings.
7. Click Convert and Save to covert and save the data.
The data saved in the same location as the original data with the same name but with a
different extension.
Example: test.
bmp → test.lg