In certain imaging applications requiring high accuracy, particularly outdoors (e.g., traffic systems, surveillance, and situational awareness), a full-color image is essential. Adimec’s color cameras feature proprietary in-camera color processing optimized for automated adjustment to constantly changing outdoor conditions.

This article explores how our color cameras achieve accurate color reproduction by aligning sensor output with human perception through advanced algorithms.

Bayer Sensor Technology

Adimec utilizes single-chip digital sensors employing a Bayer Color Filter Array (CFA) due to its cost-effectiveness and response characteristics. The standard filter pattern consists of 50% green, 25% red, and 25% blue elements per pixel. This approach necessitates two key processing steps: demosaicing followed by color recalculation.

Demosaicing Process

With a Bayer-patterned sensor, each pixel captures only one primary color value (red, green-blue, or blue-b). The complete image is reconstructed through interpolation—known as demosaicing—which fills in the missing color values from neighboring pixels. Inadequate demosaicing often introduces artifacts, especially near sharp edges.

Adimec employs proprietary complex interpolation algorithms to ensure precise reconstruction of all three primary colors for each pixel after this initial step.

Color Recalculation

Even after demosaicing provides full RGB data per pixel, the resulting image may still not perfectly match human color perception. This is because image sensors have different spectral sensitivities compared to the human eye (Figure 1).

Figure 1: Spectral response comparison between CCD sensor (dotted line) and human eye (solid line)

To bridge this gap, additional color recalculation adjusts the sensor data to approximate natural human vision.

Proprietary Color Processing Algorithms

Our exclusive algorithms address various aspects including saturation control, blur prevention through interpolation adjustments, contrast enhancement, and gamma correction. The result is a crisp image faithfully reproducing scene colors (Figure 2).

In-Camera Functionality

The automated processing ensures consistent results under varying outdoor conditions. Users can also disable in-camera processing to access raw Bayer data directly.

For further technical details on our color processing solutions, please refer to our dedicated resource materials.

Note: Figures are placeholders and should be replaced with appropriate visual elements.

Last Updated: 2025-09-04 21:37:58