在使用Borland C++开发图象软件的过程中,可以用以下三个函数进行图象块操作: unsigned far imagesize(int left, int top, int right, int bottom);//返回保存位图象所需的字节数; void far getimage(int left,int top,int right,int b...在使用Borland C++开发图象软件的过程中,可以用以下三个函数进行图象块操作: unsigned far imagesize(int left, int top, int right, int bottom);//返回保存位图象所需的字节数; void far getimage(int left,int top,int right,int bottom,void far*bitmap);//将指定区域的一个位图象保存在主存储区中; void far putimage(int left,int top, void far * bitmap,intop);展开更多
This paper presents a new semi-fragile watermarking algorithm for image authentication which extracts image features from the low frequency domain to generate two watermarks: one for classifying of the intentional con...This paper presents a new semi-fragile watermarking algorithm for image authentication which extracts image features from the low frequency domain to generate two watermarks: one for classifying of the intentional content modification and the other for indicating the modified location. The algorithm provides an effective mechanism for image authentication. The watermark generation and watermark embedment are disposed in the image itself, and the received image authentication needs no information about the original image or watermark. The algorithm increases watermark security and prevents forged watermark. Experimental results show that the algorithm can identify intentional content modification and incidental tampering, and also indicate the location where a modification takes place.展开更多
TIRF microscopy has provided a means to view mobile granules within 100 nm in size in two dimensions.However quantitative analysis of the position and motion of those granules requires an appropriate tracking method.I...TIRF microscopy has provided a means to view mobile granules within 100 nm in size in two dimensions.However quantitative analysis of the position and motion of those granules requires an appropriate tracking method.In this paper,we present a new tracking algorithm combined with the unique features of TIRF.Firstly a fluorescence correction procedure was processed to solve the problem of fluorescence bleaching over time.Mobile granules were then segmented from a time-lapse image stack by an adaptive background subtraction method.Kalman filter was introduced to estimate and track the granules that allowed reducing searching range and hence greater reliability in tracking process.After the tracked granules were located in x-y plane,the z-position was indirectly inferred from the changes in their intensities.In the experiments the algorithm was applied in tracking GLUT4 vesicles in living adipose cells.The results indicate that the algorithm has achieved robust estimation and tracking of the vesicles in three dimensions.展开更多
With the rapid development of computer technology, two-dimensional and three-dimensional technology continues is also attracting attention, computer graphics is more and more widely applied to various fields, especial...With the rapid development of computer technology, two-dimensional and three-dimensional technology continues is also attracting attention, computer graphics is more and more widely applied to various fields, especially with the popularity of decoration, interior design has become the gold industry, computer graphics has played an indispensable role in the interior design, has become an important means of expression of interior design the. Complete the design process： first using the Auto CAD idea sketch design, and then use 3Ds MAX to create the deployment model, import material, build cameras add light, render output, and finally the use of Photoshop post processing. Only through the Photoshop post processing to make the post effect diagram to achieve realistic results. This paper introduces some methods of Photoshop in interior design commonly used in making and adjustment.展开更多
文摘在使用Borland C++开发图象软件的过程中,可以用以下三个函数进行图象块操作: unsigned far imagesize(int left, int top, int right, int bottom);//返回保存位图象所需的字节数; void far getimage(int left,int top,int right,int bottom,void far*bitmap);//将指定区域的一个位图象保存在主存储区中; void far putimage(int left,int top, void far * bitmap,intop);
基金Supported by Hi-Tech R&D 863 Program of China (No. 20021111901010) and Scientific Research Fund of Hunan Provincial Education Department (No. 03A033)
文摘This paper presents a new semi-fragile watermarking algorithm for image authentication which extracts image features from the low frequency domain to generate two watermarks: one for classifying of the intentional content modification and the other for indicating the modified location. The algorithm provides an effective mechanism for image authentication. The watermark generation and watermark embedment are disposed in the image itself, and the received image authentication needs no information about the original image or watermark. The algorithm increases watermark security and prevents forged watermark. Experimental results show that the algorithm can identify intentional content modification and incidental tampering, and also indicate the location where a modification takes place.
基金Project supported by the National Natural Science Foundation ofChina (No. 30770596)the Key Laboratory for Biomedical En-gineering of Ministry of Education of China
文摘TIRF microscopy has provided a means to view mobile granules within 100 nm in size in two dimensions.However quantitative analysis of the position and motion of those granules requires an appropriate tracking method.In this paper,we present a new tracking algorithm combined with the unique features of TIRF.Firstly a fluorescence correction procedure was processed to solve the problem of fluorescence bleaching over time.Mobile granules were then segmented from a time-lapse image stack by an adaptive background subtraction method.Kalman filter was introduced to estimate and track the granules that allowed reducing searching range and hence greater reliability in tracking process.After the tracked granules were located in x-y plane,the z-position was indirectly inferred from the changes in their intensities.In the experiments the algorithm was applied in tracking GLUT4 vesicles in living adipose cells.The results indicate that the algorithm has achieved robust estimation and tracking of the vesicles in three dimensions.
文摘With the rapid development of computer technology, two-dimensional and three-dimensional technology continues is also attracting attention, computer graphics is more and more widely applied to various fields, especially with the popularity of decoration, interior design has become the gold industry, computer graphics has played an indispensable role in the interior design, has become an important means of expression of interior design the. Complete the design process： first using the Auto CAD idea sketch design, and then use 3Ds MAX to create the deployment model, import material, build cameras add light, render output, and finally the use of Photoshop post processing. Only through the Photoshop post processing to make the post effect diagram to achieve realistic results. This paper introduces some methods of Photoshop in interior design commonly used in making and adjustment.
