Speco Technologies DVR-PC8 Series, DVR-PC16 Series Auto Contrast Enhance, Sharpen Convolution

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Auto Contrast Enhance

Increase the color and light intensity of the screen automatically to increase the screen’s resolution.

Sharpen Convolution

Increase the resolution by effective to use on images with non-clear objects. The disadvantage is that the picture decreases when it is used excessively. As the setting value increase, the object differentiation will be easier but the picture quality will not be good.

Sharpen

Improve the resolution of the image by emphasizing the object’s boundary line. It has a disadvantage of lowering the picture quality as Sharpen Convolution function does. As the setting value increase, the object differentiation will be easier but the quality will not be better.

Edge-Sensitive Deinterlace

It is a function to enlarge the recorded image of 640x240 mode to 640x480 mode. This enlarging method is different from the existing mode. The boundary line is preserved while enlarging so the picture quality is maintained while the size is enlarged. If the image is recorded 640X480, contour of the image can be deviated. This phenomenon appears frequently when the fast motion is recorded. By using this filter in 640x480, deviated contour of the image is fixed.

Median

It is efficient to remove specks/spots or noise in the image. Use the setting value appropriately as the image looks as if it had been drawn with water paint when the setting value is higher.

Smooth Convolution

It is efficient to eliminate noise. It gives more natural feeling Median. But the disadvantage is that, the image will be hazy when the value is too high.

Gaussian

It eliminates the noise in whole. It is similar to Smoothing Convolution but relatively more natural than Smoothing Convolution. The noise eliminating effect is bigger as the setting value increase.

Gray

Change the image to black color.

Real Image View

When viewing the recorded data which recorded by 640x480, there comes

icon at the bottom of right side. You can see the original size of recorded data by clicking this icon.

Note Various filters can be applied together.

Example,

①[STAdaptive Denoise]→② [Auto Contrast Enhance]→③ [Sharpen], better picture quality can be get from the revised image.

※ [Edge-Sensitive Deinterlace] filter and [STAdaptive Denoise] filter can not be applied together. Furthermore apply these two filters first before applying other filters when there is a need to apply other filters together with these two filters. When these two filters are applied later, they will be applied to the original image and the filters applied previously will be canceled.