Security surveillance cameras offer a plethora of features designed to enhance their functionality and performance in various scenarios. These features ensure that cameras are capable of capturing clear and detailed images even in challenging conditions. Here are some key features commonly found in modern security surveillance cameras:

**1. Minimum Illumination**

The minimum illumination refers to the level of light required for a camera to capture clear images in low-light conditions. A lower value indicates higher sensitivity and better performance in low light. National standards define the brightness sensitivity of color cameras as the minimum illumination at which the camera produces an output signal at half of its rated level. Cameras designed for low-light conditions are often categorized based on their minimum illumination values:

- 0.1 Lux: Low light level

- 0.01 Lux: Moonlight level

- 0.001 Lux and below: Starlight level

**2. Wide Dynamic Range (WDR)**

Wide dynamic range technology is utilized to ensure that both bright and dark areas within a scene are captured with clarity. WDR measures the range of brightness levels from the brightest to the darkest parts of an image. Cameras with higher dynamic ranges are capable of handling scenes with more pronounced variations in brightness. Traditional cameras might expose both the bright and dark areas of the image simultaneously, causing overexposure in bright areas and underexposure in dark areas. WDR technology allows for separate exposure adjustments for bright and dark regions, resulting in a clearer overall image.

**3. Backlight Compensation**

Backlight compensation addresses situations where strong backlighting causes the main subject of the image to appear dark. By selectively adjusting exposure levels, the camera ensures that specified areas are well-exposed, mitigating the impact of strong backlighting.

**4. Glare Suppression**

Glare suppression, often referred to as PLC (Power Line Communication), reduces the intensity of strong light sources like car headlights entering the camera's field of view. This feature minimizes lens flares and image blurring caused by strong light sources, thus improving image quality.

**5. Privacy Masking**

Privacy masking allows users to block out specific areas within the camera's field of view to protect privacy. For instance, in an ATM surveillance scenario, areas where users input their passwords might be masked to prevent unauthorized access to sensitive information.

**6. White Balance**

White balance ensures accurate color reproduction by correcting the color temperature of the light source. While the human eye adapts to changes in color temperature, cameras require white balance adjustments to maintain consistent color representation.

**7. Electronic Shutter**

The electronic shutter setting determines how long the camera's sensor is exposed to light. A shorter shutter speed results in clear edges for moving objects, but may reduce low-light performance.

**8. Day-Night Switching**

Cameras employ different techniques to switch between day and night modes. Electronic day-night switching involves using dual optical filters controlled by internal programming. Mechanical day-night switching uses two optical filters for separate day and night operation, controlled by motors or coils to achieve superior image quality.

**9. Automatic Gain Control (AGC)**

AGC adjusts the gain or amplification of the camera's sensor signal to enhance brightness. However, excessive gain can amplify noise, leading to image degradation. Proper AGC control is crucial to maintaining optimal image quality.

Modern security surveillance cameras are equipped with these advanced features to ensure optimal performance in various environments and lighting conditions. OHWOAI offers a range of high-quality security camera systems, including wireless surveillance camera systems with 8 channels, outdoor wireless CCTV solutions, wireless security system sets, outdoor home security camera systems, and more. These systems provide reliable and comprehensive surveillance solutions to enhance security and peace of mind for homes and businesses alike.