Planmeca Viso Technical Manual page 93

5.3.3.8 Manual blemish marking
Technical manual
The manual blemish marking tool can be used to mark bad pixels or
blemishes in the images manually, if the automatic flat field calibration was
not able to mark all the pixels correctly.
NOTE
Flat field calibration must be completed before you can start the manual
blemish marking process.
1. Start the Device Tool and click Manage Imaging System button.
2. In the Manage Imaging System window click the Get Info button under
the below 3D Sensor. The sensor serial number is displayed in the Log
window.
NOTE
The serial number can also be found on the sensor.
3. Start the manual blemish marking tool, click the File menu and select
Manual blemish marking.
4. Click the Load Bad Map button.
A drop-down menu displays all sensors which have been used for
imaging.
5. Select the appropriate sensor (serial number checked earlier) and
desired bad map (resolution/PAN, SmartPan) from the list.
A bad map screen displays, with the bad pixels marked automatically
during the flat field calibration shown as white pixels.
6. Load reference image:
• If marking 1x1, 2x2 or 4x4 bad pixels, click Load Raw Frames button.
• If marking SmartPan bad pixels, click Load SmartPan Raw Frames
button.
7. Select appropriate frameset.
The images display in the menu according to the date and time of
exposure.
The frameset opens in Raw frames tab. Browse images with the
horizontal scroll bar.
8. Mark the bad pixels.
If you can now see a bad pixel or a line in the raw frames, but it is not
marked as a white pixel/line on a bad map, you can mark it manually.
The image selected in the Raw Frames tab is automatically updated to
Bad Map tab.
• To mark bad pixels in the images click Mark as Bad Pixel button
• To undo the bad pixel marking click Mark as Good Pixel button
• To mark the entire bad columns or rows right-click on the image and
select from the opening menu the appropriate option
9. To import the image on top of the pixel map click the Show Raw Frame
button.
5 Adjustments and calibrations
Planmeca Viso 87