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Along with the development of information security, steganography has received increasingly attention. It has become a trend that more and more institutions offer steganography techniques in cybersecurity education. In this paper, we propose integrating steganography into cybersecurity curriculum. Stenography modules and hands-on labs are designed. It covers the principles of steganography, steganographic...
This paper concerns the plant leaf area measurement based on improved image processing. Firstly, the referenced rectangle was detected with 2-side scan method. Then the leaf region was segmented according to 2G-R-B of every pixel with two thresholds, and by using of dilatation operation, the trimap of leaf image was got. Next the pixels in unknown area were classified to the foreground or background...
This paper concerns the problem of standing tree image mosaic based on SURF in pocket PC. In standing tree measurement based on image processing, the first step is to take photo of the tree to be measured. Due to some special tall trees, or limited by geographical conditions, it is impossible to get the full image of the tree for one time, and need to shoot sequence tree images with overlapped areas...
This paper concerns the problem of standing tree volume measurement based on digital image processing. A computer and a camera were used in our work. Before the tree photo was taken, two red color marking labels were attached on the trunk. After the marking points and the tree trunk were extracted, the tree trunk edges were fitted with a high order curve. Then the volume of tree trunk of any height...
This paper concerns the problem of tree height measurement based on image processing by 3-points correction. In the traditional method, two marker points were used, one was set on the root of the tree and the other was set one meter high from the root. A tripod was used to fix the camera for taking photos of the tree and the photo was made perpendicular to the ground, which have many restrictions...
This paper tackles the problem of single standing tree measurement based on image processing embedded in a smartphone. A smartphone with camera and a benching marking were used in our method. Before the tree photo was taken, a cross marking label with red colored ends was leaned on the tree, close and parallel to the tree trunk. After the marking points were extracted, the image was corrected by a...
This paper concerns the problem of tree height measurement based on image processing embedded in smart mobile phone. A smart phone with camera and a benching marking were used to in our method. Before the tree photo was taken, a benching marking with red colored ends was leaned on the tree closely and parallel to tree trunk. Then the top point of the tree image was extracted according to their color...
This paper concerns the problem of tree image segmentation. Image segmentation is the basis of the precision toward-target pesticide application to trees and the real-time and accuracy requirements are very high. In this work, we transformed the image color space from RGB to HIS and normalized the image hue centered on tree hue. Then the color image was segmented by using of an improved 2-D OTSU method...
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