EN
RayClouds Photoelectric Technology Co.,Ltd.
RayClouds Photoelectric Technology Co.,Ltd.

Imaging Brightness Period-Wrong Judgement is still Unavoidable

First, we simplify the problem, holding the view that the imaging luminance meter, lens distortion, spectral matching and correction have reached the level of LMK imaging luminance meter. The display alignment is also, only discussing the algorithm.

First, of course, the imaging luminance meter can pick points at will, completing 9 points, 135 points, thousands to n points. But in this way, except for the efficiency improvement, there is no big difference from the method of point brightness meter. In order to display the greatest feature of imaging brightness, there is a uniform segmentation method, that is, the display is seamlessly divided into small blocks according to the size of the required test points, and all the pixels in each small block are regarded as the brightness value of the small block on average.

What if the maximum or minimum brightness point is right on the splitting line? And that seems to be the norm. For example, if the brightness maximum point is in the middle of four adjacent small squares, the point will inevitably be omitted, because the four surrounding small squares will divide the point into four parts, and the brightness of the pixels in their respective squares are average. Therefore, by this method, it can be seen that the location of each small block is fixed, and only the points with "registered permanent residence" are counted, and the points appearing on the partition line will be delimited into other blocks because there is no "registered permanent residence", thus becoming the point of leakage.

Related News
  • Characteristics Of Imaging Luminance Meter

    Characteristics Of Imaging Luminance Meter

    July 11, 2019Imaging luminance meter can achieve high accuracy, high repeatability and high contrast measurement of light color. It can be integrated with scintillation measurement function. It can be used for a r...view
  • Large-size LCD Optical Measurement System

    Large-size LCD Optical Measurement System

    July 11, 2019The optical characteristics of LCD must be integrated with complex items such as motion control, image automatic positioning, analog/digital signal acquisition, and instrument communication. The softw...view
  • HOW HOT IS THE MINI LED BACKLIGHT

    HOW HOT IS THE MINI LED BACKLIGHT

    October 12, 2022Introduction:With the development of Mini LED backlight,the release of Mini LED backlight products has been accelerated since 2022,which not only has a certain improvement in quantity, but also more new p...view
  • What Does the Integrating Sphere Do?

    What Does the Integrating Sphere Do?

    February 19, 2021Although we are unfamiliar with integrating sphere, but it is indispensable. What is the integrating sphere used for? 1. What is an integrating sphere?The integrating sphere is a hollow sphere with it...view
  • LED Fast LED Photochromic Tester Function

    LED Fast LED Photochromic Tester Function

    July 11, 2019The LED Photochromic Tester developed and manufactured by our company is mainly used for fast spectrophotometric color separation of high-power LED, and is suitable for on-line sorting of high-power L...view
  • When choosing Lamp Protecting Child Eye, Brightness Value is not the Higher the Better

    When choosing Lamp Protecting Child Eye, Brightness Value is not the Higher the Better

    May 15, 2019From the color temperature of view, different colors of lights have no significant effect on the progress of myopia in children. The main risk factors for myopia are high intensity and work at a near ...view


LATEST_NEWS



Contact