本程序是在CCS6.0的环环境下运行的,可以完成实时图像的边缘检测!效果很好!运用时只要在编译环境下即可通过的!-the procedures in the Central CCS6.0 operating environment, real-time images to be completed Edge Detection! Very effective! When used as long as the compiler environment to be adopted! 下载
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TLV1544与TMS320VC5402通过串行口连接,此时,A/D转换芯片作为从设备,DSP提供帧同步和输入/输出时钟信号。TLV1544与DSP之间数据交换的时序图如图3所示。 开始时, 为高电平(芯片处于非激活状态),DATA IN和I/OCLK无效,DATAOUT处于高阻状态。当串行接口使CS变低(激活),芯片开始工作,I/OCLK和DATAIN能使DATA OUT不再处于高阻状态。DSP通过I/OCLK引脚提供输入/输出时钟8序列,当由DSP提供的帧同步脉冲到来后,芯片从DATA IN接收4 b通道选择地址,同时从DATAOUT送出的前一次转换的结果,由DSP串行接收。I/OCLK接收DSP送出的输入序列长度为10~16个时钟周期。前4个有效时钟周期,将从DATAIN输入的4 b输入数据装载到输入数据寄存器,选择所需的模拟通道。接下来的6个时钟周期提供模拟输入采样的控制时间。模拟输入的采样在前10个I/O时钟序列后停止。第10个时钟沿(确切的I/O时钟边缘,即上升沿或下降沿,取决于操作的模式选择)将EOC变低,转换开始。 -TLV1544 with TMS320VC5402 through serial port connectivity, at this time, A / D conversion chip as from the equipment, to provide frame synchronization DSP and input / output clock signal. TLV1544 DSP and data exchange between the chronology of the map is shown in figure 3. At the beginning of the margin (in chip-activated), and I DATA IN / OCLK invalid, DATAOUT at high resistance state. When the serial interface CS change low (activator), the chip start work, I / OCLK and DATAIN can DATA OUT is no longer in a state of high resistance. DSP through I / OCLK pin provide input / output clock 8 sequence, When the DSP from the frame synchronization pulse, the chip from the DATA IN receive four channels to choose b address, DATAOUT sent from the same time the previous conversion results from the 下载
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算法特点: (1)可检测低对比度直线(可根据感兴趣问题的边缘强度调整); (2)编程接口简单,集成移植非常容易,算法可输出图像中每条直线的起点、终点、斜率等参数; (3)程序代码完全工程化设计,对320×240图像的处理速度可达15帧/秒; 测试方法: 在安装有USB CMOS摄像头的计算机上直接运行本程序即可看到实时检测直线的处理效果(采用不同颜色表示不同方向的直线)。 (可用于立体视觉、摄像机标定、人体运动分析、智能交通道路检测、工业生产监测等) - 下载
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一种新的图像脆弱水印算法李亚琴 ,孙星明 ,杨恒伏(1.苏州市职业大学,江苏苏州215104;2.湖南大学计算机与通信学院,湖南长沙410082)摘要:提出一种基于小波变换和QR分解的图像脆弱水即方法。嵌入水印时,首先对原始图像进行三级小波分解,然后提取第三级低频子带的边缘特征,同时对此边缘特征和第三级垂直高频子带进行QR分解,用边缘特征的一部分分解结果替换垂直高频子带分解结果的相应部位来嵌入水即,最后进行小波逆变换得到嵌入水印的图像。图像认证时,首先对观测图像进行三级小波分解,第三级垂直高频子带与低频子带边缘特征的QR分解结果进行比较,就可以准确认证图像是否经过攻击,并可以精确定位受攻击的部位。实验结果表明此方法的有效性和可行性。-a new image fragile watermarking algorithm Ya-Qin Li, Sun Xingming, Heng Yang Fu (1. Suzhou City Vocational University, Suzhou City in Jiangsu 215104; 2. Hunan University College of Computer and Communication, Changsha, Hunan 410082) Abstract : A wavelet transform based on QR decomposition and the image that the fragile water ways. Embedded watermark, the first of three original image wavelet decomposition, and then extract the third level sub-band edge features, Meanwhile this edge features and third-vertical high-frequency band for QR decomposition, Edge feature with the results of the replacement part of decomposition vertical high-frequency subband results to the corresponding parts of the water that is embedded. Finally inverse wavelet transform embedded watermark images. Image Authen 下载
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现在市面上流行的3D游戏画面越来越炫目,不过也有一些为了营造一种特殊的效果而使用了卡通渲染技术,比如PC游戏中的《杀手XIII》,《忍者神龟》;PS2游戏中的《真红之泪》,《犬夜叉》等等。这些游戏的画面看上去很像漫画,感觉比较有趣。下面就介绍一种简单的实现方法。 所谓用卡通渲染技术绘制的三维物体一般都有两个明显的特征,一个特征是物体表面覆盖着大块的单调颜色,而且光影变化比较剧烈;另一个特征是物体拥有粗重的边缘效果。如果能自己控制光照和阴影,就可以达到目的。而DirectX 9.0 中的顶点渲染(Vertex Shaders)提供了这样一个途径,使我们可以实现自己的想法。 顶点渲染与以前的T&L在渲染流程中处于二选一的地位,一段代码最多只能有128条指令,而且不能有循环,判断和跳转指令,全是线性执行指令。每次只能有一个Shader程序是激活的,Vertex Shaders让我们可以实时地控制模型的空间变换,光照处理以及像素渲染。 那么现在先来解决第一个问题。我们可以用光线的亮度值作为物体的纹理坐标,这就产生一种带状纹理的效果,然后再调整相应的颜色即可。-now the fashion for 3D games more compelling picture, But there are also some in order to create a special effect and the use of the cartoon rendering technology, PC games such as the "killer XIII," "Turtles"; PS2 game of "truth red tears," "two characters." These games comic picture looks like, I feel more interesting. Now, on a simple method. Using the so-called cartoon rendering of 3D rendering objects normally have two obvious feature a surface characteristics of an object covered with chunks of dull colors, but more dramatic changes in the Universe; Another characteristic is heavy objects have the edge effect. If the ability to control their own light and shadow, we can achieve the aim. DirectX 9.0 vertex Rendering (Vertex Shaders) provide such 下载
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