Image Adjustments - Raymarine a65 Operation Instructions Manual

20.6 Image adjustments

Adjusting the thermal camera image
With the thermal camera application displayed:
1. Select Menu.
2. Select Adjust Contrast.
3. Select the Contrast, Brightness, or Color option
as appropriate.
The relevant numeric adjust control is displayed.
4. Adjust the value as required.
5. Select Back or Ok to confirm the new value.
Thermal camera scene presets
Scene presets enable you to quickly select the
best image setting for the current environmental
conditions.
During normal operation the thermal camera
automatically adjusts itself to provide a high-contrast
image optimized for most conditions. The Scene
presets provide 4 additional settings that may
provide better imagery in certain conditions. The 4
modes are:
Night Running — scene preset mode for
night conditions.
Day Running — scene preset mode for
daytime conditions.
Night Docking — scene preset mode for
night docking.
Search — scene preset mode for identifying
people or objects in the water.
Although the preset names indicate their intended
use, varying environmental conditions might make
another setting more preferable. For example, the
night running scene preset might also be useful while
in a harbor. You may find it beneficial to experiment
with the different scene presets to discover the best
preset to use for different conditions.
Changing the thermal camera scene preset
With the thermal camera application displayed:
1. Select Menu.
2. Select Image Options.
3. Use the Scene menu item to switch between the
available scene presets, as appropriate.
Thermal camera color modes
A range of color modes are available to help you
distinguish objects on-screen in different conditions.
Changing the color mode switches the thermal
camera image between a greyscale mode and 1
or more color modes. There are 5 color modes
available.
The factory default color mode is white, which may
improve your night vision. This default mode can be
changed if required using the camera's on-screen
Video Setup menu.
Thermal camera application — fixed mount cameras
Note: If you have the Disable Color Thermal Video
option selected in the camera's on-screen Video
Setup menu, only 2 color modes are available —
greyscale and red.
Changing the thermal camera color mode
With the thermal camera application displayed:
1. Select Menu.
2. Select Image Options.
3. Use the Colour menu item to switch between the
available color palettes, as appropriate.
Thermal camera reverse video
You can reverse the polarity of the video image to
change the appearance of objects on-screen.
The reverse video option (video polarity) switches the
thermal image from white-hot (or red-hot if the color
mode setting is active) to black-hot. The difference
between white-hot and black-hot is shown below:
You may find it useful to experiment with this option
to find the best setting to suit your needs.
Enabling thermal camera reverse video
With the thermal camera application displayed:
1. Select Menu.
2. Select Image Options.
3. Select Reverse Video.
Thermal camera rear view mode
The rear view mode flips the video image horizontally,
providing a "mirror image".
This is useful for example in instances where the
camera is rear-facing and you are viewing the image
on a forward-facing monitor.
Enabling thermal camera rear view mode
With the thermal camera application displayed:
1. Select Menu.
2. Select Image Options.
3. Select Rear View.
White-hot thermal image.
Black-hot thermal image.
307