A web camera system and a method of operating the same, the system including a computer connected to a video camera that outputs a captured image. A program runs on the computer to generate a histogram that provides a distribution of pixel intensities associated with the image. A static image indicating a low contrast image is uploaded to the web server when a width of the distribution is less than a predetermined threshold value; otherwise, the captured image is uploaded to the web server.

Un sistema de la cámara fotográfica de la tela y un método de funcionar igual, el sistema incluyendo una computadora conectaron con una cámara de vídeo que hace salir una imagen capturada. Un programa funciona en la computadora para generar un histograma que proporcione una distribución de las intensidades del pixel asociadas a la imagen. Una imagen estática que indica una imagen baja del contraste uploaded al web server cuando una anchura de la distribución es menos que un valor de umbral predeterminado; si no, la imagen capturada uploaded al web server.

 
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> Reflectometry system with compensation for specimen holder topography and with lock-rejection of system noise

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