Signal- und Bildverarbeitungsfunktionen

Ein kleiner Auszug aus dem Kappa Signal Processing Portfolio

Signal-Processing Features

Image Processing  


8-bit up to 16-bit signal processing
Edge enhancement Increase contrast at edges
Brightness Increasing of image brightness (offset)
Contrast Contrast increasing/moderation
ACC/DRE Automatic control for contrast and brightness with histogram stretching or equalization
Gamma/LUT Adjustable Gamma function/programmable lookup table
Histogram stretching Contrast/brightness enhancement (using the entire range)
HDRadapt Adaptive luminance algorithm
HDR, High Dynamic Range (16-bit) expanded dynamic range

Filter / Memory  

Shading correction: adjustable correction (e.g. shading and vignetting)
Recursive filter Adjustable filter for noise reduction by averaging images
Bad pixel correction Correction of defect pixels (hot spots), bright + dark spots
Distortion correction  Adjustable correction of pillow-shaped and barrel-shaped distortions
Background image subtraction:  Subtraction of a reference image
Circular blanking Circular image window (endoscopy and x-ray applications)
Freeze image Hold current image
Mirror / flip Horizontal/vertical image mirror
Negative image Inversion of the positive image, inverted colors/gray values
Image shift Adjustable X-Y shifting
Zoom Adjustable digital zoom
Color Processing  


Color processing for CCD with CyMgYeG Pattern
DCIP RGB Color processing for CCD with Bayer Mosaic Pattern
White balance  Automatic or manual white balance
Color saturation Adjustable color saturation
Interpolator Calculation of color values for each pixel from surrounding pixels


 Automatic exposure time (adjustable target value)
AGC Automatic gain control (adjustable target value)
Smear Correction Automatic correction of smear effects at short exposure times
Automatic Level Target value for AET + AGC

normal time: exposure = readout time
short (shutter): exposure < readout time
long: exposure > readout time


Character Generator: 

Programmable overlays (text, characters, circles, logo)
Line Generator Adjustable lines (up to 4)
Circle Generator Adjustable circles (up to 2)
On Screen Menu PC-independent adjustment
Mask Mask out image areas​
Image Format/Readout Modes  

ROA, Read out Area: 

Adjustable image area for partial scan
ROI, Region of Interest adjustable image area with Frame Mask (AOI area of interest)
Binning Adjustable horizontal and vertical binning for noise reduction and higher frame rates, higher sensitivity
Pixel Format (Color Coding) Mono 8, 10, 12, 14, 16, RGB, YUV, RAW
Measurement Window Measurement basis for automatic functions
Readout Mode Multichannel readout 1, 2, 4 free running, reset/restart, trigger, FoD, GFR-Gated Free Running (trigger controlled free running sequence)
Dilution  faster images by “thinning out” pixels


Frame on Demand (trigger controlled exposure)

Gated Free Running (trigger controlled free running sequence)
Hardware Trigger: external trigger signal

Software Trigger:  Programmable trigger signal (e.g., timer)
Trigger Delay Adjustable delay between trigger and exposure
External Synchronization Synchronous image sequences
External Clock  External pixel clock
PTP Precision Time Protocol for synchronicity of several devices in a network with a master clock (IEEE 1588)
IRIG B protocol for time synchronization​


Hash value calculation for digital signature
Data compression image data compression with H.264 (AVC), MPEG4, MJPEG
Recording Real-time recording of image sequences (also HD)
S3D Precise calibration and synchronization for 3D Imaging
Streaming GigE Vision 2.0, RTP, RTSP, USB 3 Vision
Tone Mapping Compression of color and contrast information of images for monitor display