The aim of the paper is to provide three enhancement methods for processing color images, including: RGB Histogram equalization, the method based on HSI and Multi-scale Retinex with color restoration (MSRCR). Firstly, we shall briefly introduce color image enhancement and related concept. Then, emphasis is placed on the principle of the three methods. Afterwards, we make comparison among the three methods. Finally, we can get a conclusion that: MSRCR greatly not only strengthens the details but also keep the color of the original image and acts more consistent with characteristics of human vision. However, it takes longer time. Simulation results provide a guidance and reference for the choice of color image enhancement methods.
The purpose of the paper is to design a sensor to satisfy the need of the strain transmission measurement for the underwater gun. In this paper, after a statement of the working principle of the sensor system, the entirely standards sensor making process involving the performance and intensity limitation of the strain tube are conducted. Then this will be followed by an analysis of the working bridge road. Finally, by the existing standard sensor, the designed sensor is calibrated and contrasted. The test results show that the designed strain cylinder sensor offers advantages over linearity, and hence can be used in engineering practice.
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