Description: 二值目标图象质心的计算 二值目标图象质心的计算-Second, the value of the target image centroid calculation of the target binary image centroid calculation Platform: |
Size: 130048 |
Author:王凉 |
Hits:
Description: In this project we have implemented a method for recognition of Printed Characters by extracting some features from the gray scale image using a Bank of Gabor Filters. In this project we initially segment the given word image into words and words into characters. We apply these characters to a bank of Gabor Filters .From the output of these Gabor Filters we extract features namely normalized Centroid ,Normalized area .We form a vector using these parameters and then compare these vectors with the reference vectors which were computed earlier using reference characters. Finally we print the character corresponding to the reference vector which is closest to the computed vector. - In this project we have implemented a method for recognition of Printed Characters by extracting some features from the gray scale image using a Bank of Gabor Filters. In this project we initially segment the given word image into words and words into characters. We apply these characters to a bank of Gabor Filters .From the output of these Gabor Filters we extract features namely normalized Centroid ,Normalized area .We form a vector using these parameters and then compare these vectors with the reference vectors which were computed earlier using reference characters. Finally we print the character corresponding to the reference vector which is closest to the computed vector. Platform: |
Size: 199680 |
Author:prasad |
Hits:
Description: Set of functions to calculate the centroid, central moments and normalised moments of a binary image. Easy to understand, implemented in matlab Platform: |
Size: 1024 |
Author:sdqali |
Hits:
Description: 在数字图像中虹膜位置的有效定位是虹膜识别的关键问题。用一种基于主动轮廓线模型的方法定位虹膜的位置，先用灰度投影法检测出瞳孔内的一点作为瞳孔的伪圆心，该圆心只要能落在瞳孔内部即可。然后以该伪圆心为中心，在其周围等角度间隔地取N个点作为初始的snake基准点，按照snake 的运行机制不断进化，直到虹膜的内边界为止。最后，计算进化后的snake形心和snake上的控制点与该形心的距离，取其平均值作为瞳孔的半径，动态轮廓模型的形心作为瞳孔的圆心，即可准确定位出虹膜内边界的位置。实验表明，与常见的定位方法相比，文中的方法速度快、精度高，而且，对瞳孔初始的伪圆心要求不高，鲁棒性更强。-Digital image of the iris in the location of the effective positioning of the key issues of iris recognition. With a model based on the active contour method of positioning the location of the iris, the first gray projection method used to detect the pupil as the point of the pseudo-pupil center, the center of a circle as long as it can fall within the pupil. And then to the pseudo-center as the center, in terms of their spacing around the N points to get the snake as the initial reference point, the operating mechanism in accordance with the snake continued to evolve until the border until the inner iris. Finally, after calculating the evolution of snake and snake-shaped heart of the control point on the centroid distance, choose the average as the radius of the pupil, the dynamic contour model of the centroid as the center of pupil can be an accurate positioning within the borders of the iris position. The experimental results show that the position with common methods, the methods o Platform: |
Size: 1764352 |
Author:侯汶杉 |
Hits:
Description: tracker.m
Continuously keeps taking snap in real time and sending to function isub for tracking
isub.m
It is a function which takes two consequent frames, subtracts them(background gets subtracted), converts the
resulting image into binary, finds the centroid of largest area of connected pixels and marks it(tracks it)
The code has been tested in MATLAB 7.6 Platform: |
Size: 2048 |
Author:Vishwanath |
Hits:
Description:
cntrd: calculates the centroid of bright spots to sub-pixel accuracy.
Inspired by Grier & Crocker s feature for IDL, but greatly simplified and optimized
for matlab
INPUTS:
im: image to process, particle should be bright spots on dark background with little noise
ofen an bandpass filtered brightfield image or a nice fluorescent image
mx: locations of local maxima to pixel-level accuracy from pkfnd.m
sz: diamter of the window over which to average to calculate the centroid.
should be big enough
to capture the whole particle but not so big that it captures others.
if initial guess of center (from pkfnd) is far from the centroid, the
window will need to be larger than the particle size. RECCOMMENDED
size is the long lengthscale used in bpass plus 2.
interactive: OPTIONAL INPUT set this variable to one and it will show you the image used to calculate
each centroid, the pixel-level peak and the centroid-
cntrd: calculates the centroid of bright spots to sub-pixel accuracy.
Inspired by Grier & Crocker s feature for IDL, but greatly simplified and optimized
for matlab
INPUTS:
im: image to process, particle should be bright spots on dark background with little noise
ofen an bandpass filtered brightfield image or a nice fluorescent image
mx: locations of local maxima to pixel-level accuracy from pkfnd.m
sz: diamter of the window over which to average to calculate the centroid.
should be big enough
to capture the whole particle but not so big that it captures others.
if initial guess of center (from pkfnd) is far from the centroid, the
window will need to be larger than the particle size. RECCOMMENDED
size is the long lengthscale used in bpass plus 2.
interactive: OPTIONAL INPUT set this variable to one and it will show you the image used to calculate
each centroid, the pixel-level peak and the centroid Platform: |
Size: 2048 |
Author:santhu |
Hits:
Description: 可以实现图像的批处理，用OPENCV来读取图像 并实现人脸肤色分割图像的质心的计算-Image batch the OPENCV to read images and achieve the calculation of the centroid of the skin color image segmentation Platform: |
Size: 2121728 |
Author:枫叶 |
Hits:
Description: 已知一图像的轮廓，计算该轮廓质心，并标注在图上-A known the outline of image, the contour centroid calculation, and marked on the map
Platform: |
Size: 1024 |
Author:梦之碟 |
Hits:
Description: 通过该函数能够求得图片呗选择区域的质心。-Image obtained by this function can chant centroid of the selected area. Platform: |
Size: 3072 |
Author:tianmiaomiao |
Hits:
Description: centroid方法定位图像中心，自动截取图像目标区域-centroid method to locate the center of the image, automatic interception image target area Platform: |
Size: 1024 |
Author:小丸子 |
Hits:
Description: 计算图像的质心，用图像的算发进行操作。这样可以有效的算出图像的质心-The centroid of the calculated image, with an image of the operator hair operation. This can effectively calculating the image centroid Platform: |
Size: 2085888 |
Author:feifei |
Hits:
Description: 可以寻找二值图像图像块的质心，并显示出来-Can find the centroid of the image block of the binary image, and displayed Platform: |
Size: 1024 |
Author:allen |
Hits:
Description: 程序通过提取人脸图像的质心、协方差、偏转角等特征量与数据库中已有参数进行比对，从而进行人脸的识别。-Procedure to extract the centroid of the face image, covariance, the deflection angle has the feature quantity parameters of the database and compared to identify human faces. Platform: |
Size: 2048 |
Author:wang |
Hits:
Description: 2016年中国图像图形学报 求质心的快速算法 免滤波 直接可以求得质心的位置 附带 matlab源代码-In 2016 the Chinese image and graphics Journal of the fast algorithm for the centroid of the fast algorithm can be obtained directly the center of the location of the matlab source code!! Platform: |
Size: 172032 |
Author:费非 |
Hits:
Search - centroid of image