Image processing 1.
.The image is a very important information. In everyday life people see in the many images in nature. The quality from the camera or images that appear on the computer screen. When the computer science is developing more and more.And can be used in computer management pattern of colors. Light and shadow, existing in a digital data, such as how to make the image input มานั้น is more clear, or more brightness. Etc.
.Basic knowledge of image processing 1.1
.Digital image, image process the show (Optical Process), which is caused by the electromagnetic energy several frequency ranges, such as แสงธรรมดา X-ray radiation (X-ray), infrared (Infrared) etc., and sound energy, such as ultrasound, าวน์The incident and reflected object to sensory perception of humans or detection equipment, but in the here mentioned only the digital 2 dimension, G (xY) by X Y is the value and position in rectangular coordinate system, and the value of G at position (x y), any global will be with the brightness of the light at that position. Image, usually can be divided into 2 type is
1.Color images (Color Image) which values of the intensity is a vector quantity that contain 3 elements is a vector, red, green). Vector blue mixed in the ratio of different to consist of a picture image 1
2.Image gray tone (Gray Scale Image) which intensity is the quantity s Kela. Image gray tone is sometimes called a single color (Monochrome Image) this image caused by color mixing of colors and color 3 system (RGB) in equal ratio
.Image conversion into digital images. When there is need to take pictures in nature processing by computer. It is necessary to perform image converter from physical to digital images, which comprises 3 steps
1.The recording by the recording optical devices (Optical Device), an image converter and continuous 3 dimensions. Which is the picture that can be seen in the nature around us a picture of continuous 2 dimensions such images บนฟิ film, photo on the paper.2.A random selection of position, a process image conversion 2 dimensions. The image into digital. By randomly selected the location (Spatially Sampling) by will randomly select some specific points on the image and the axial x y as shown in the following pictures.
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