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Image Settings & Video Rotation

Overview​

The Image Settings and Video Rotation sections allow you to control how the video image is processed, corrected, and presented before it is exposed via ONVIF and streamed to external clients.

These settings affect the final video output but do not modify the original desktop or application content at the operating-system level.

tip

All adjustments are applied in real time.

Virtual IP camera list in ITVDesk Virtual IP camera list in ITVDesk

Image Settings (ONVIF Imaging)​

Image Settings simulate standard ONVIF Imaging controls, commonly found on physical IP cameras.

They allow fine-tuning of image appearance to improve readability, visibility, and compatibility with external VMS/NVR systems.

Brightness​

Controls the overall luminance of the image.

  • Lower values: darker image
  • Higher values: brighter image

Useful for adjusting visibility in dark or bright environments.

Color Saturation​

Controls the intensity of colors.

  • Lower values: more grayscale appearance
  • Higher values: more vivid colors

Recommended to keep near default for desktop sources.

Contrast​

Adjusts the difference between dark and bright areas.

  • Low contrast: flat image
  • High contrast: sharper separation of tones

Sharpness​

Enhances edge definition.

  • Low values: softer image
  • High values: stronger edge emphasis
tip

High sharpness may introduce visual artifacts on text-heavy content.

White Balance Mode​

Defines how color temperature is handled.

  • Auto – Automatically balances colors (recommended)
  • Manual – Uses Cb / Cr values

White Balance Cb / Cr​

Manual chroma adjustment values.

  • Cb: blue difference
  • Cr: red difference

Effective only when White Balance Mode is set to Manual.

Backlight Compensation (BLC)​

Improves visibility when the image contains strong backlight.

  • Mode: on / off
  • Level: compensation strength

Primarily useful for camera sources, optional for desktop capture.

Wide Dynamic Range (WDR)​

Balances very bright and very dark areas.

  • Mode: on / off
  • Level: WDR strength

Helps preserve details in high-contrast scenes.

Exposure Mode​

Controls how exposure is calculated.

  • Auto – System-controlled exposure (default)
  • Manual – Uses Gain and Time values

Exposure Gain​

Controls signal amplification.

  • Higher gain increases brightness
  • Excessive gain may introduce noise

Exposure Time​

Controls how long each frame is exposed.

  • Higher values increase brightness
  • Very high values may reduce perceived motion clarity

Infrared Cutoff Filter (Virtual)​

Simulates an IR-cut filter.

  • On / Off
tip

This is a virtual filter for compatibility with ONVIF clients and does not control physical IR hardware.

Extra Imaging Filters​

Optional additional image filters.

  • Default: Disabled

These filters may include experimental or cosmetic processing options.

Default Button​

Resets all image parameters to their default values.

Save / Close​

  • Save – Applies and stores the current settings
  • Close – Exits without saving changes

Video Rotation​

The Rotation Video menu allows changing the orientation of the video stream before it is delivered to ONVIF clients.

This is useful for matching different display layouts or camera orientations.

Available Options​

  • Disable
    No rotation or flipping applied.

  • Horizontal Flip
    Mirrors the image horizontally.

  • Vertical Flip
    Mirrors the image vertically.

  • 180° Clock
    Rotates the image by 180 degrees.

  • 90° CW
    Rotates the image 90 degrees clockwise.

  • 90° CCW
    Rotates the image 90 degrees counter-clockwise.

tip

Rotation is applied after image processing and affects all connected clients equally.

Notes & Limitations​

  • Image and rotation settings affect stream output only
  • No changes are made to the original desktop or application content
  • All processing is performed in real time
  • Settings are exposed consistently via ONVIF

Typical Use Cases​

  • Correcting screen orientation for rotated displays
  • Improving text readability
  • Matching VMS display expectations
  • Simulating camera-like imaging controls for desktop streams

Summary​

Image Settings and Video Rotation in ITVDesk provide:

  • ONVIF-compatible imaging controls
  • Real-time image correction
  • Flexible stream orientation
  • Compatibility with external VMS/NVR systems

They allow desktop and application streams to behave like fully configurable IP camera video sources.

Next Steps​

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