Madalasa's profile - activity

Any other way to read??

Tried to use IplImage img=cvLoadImage(filename,-1) but it is also not working

Unable to use libtiff properly..So is there any other way to access it

Bit depth is [0.0-1.0]

Image we only computed using ERDAS software. Image is converted to TOA(Top of Atmospheric reflectance)... Stored as tiff format

In matlab it is showing as single bit image

Image is in the range [0-1].I tried to use Mat img=imread(filename,CV_LOAD_IMAGE_COLOR); But the rows are 0 and cols are 0 and channels as 3. So how to access it properly. when i'm using CV_LOAD_IMAGE_ANYDEPTH error is coming.

I want to compare all 3 channels with different values.. Channel 1 >50 && channel 2 > 60 && channels 3 >110 And i want to store the values in new CV_16UC3 matrix.

Mat image(5620, 4894, CV_16UC3, Scalar(0, 0, 0));
for (int j = 0; j < Change_Detected.rows; j++)
{
    for (int l = 0; l < Change_Detected.cols; l++)
    {
        if (img.at<Vec3b>(i,j)>200)
        {
            image.at<Vec3b>(j, l)[0] = img.at<Vec3b>(j, l)[0];
            image.at<Vec3b>(j, l)[1] = img.at<Vec3b>(j, l)[1];
            image.at<Vec3b>(j, l)[2] = img.at<Vec3b>(j, l)[2];
        }
    }
}

Using VL i required

vl_slic_segment(segmentation, img, width, height, channels, region, regularization, minRegion);

img is converted to 3d to 1d matrix, now how to convert to float to perform segmentation.

image.at<ushort>(i,j)[0] is this way to access values...

What is the correct way to access those values??

I'm unable to access the values in the matrix properly.

for (int i = 0; i < image.rows; i++)
    {
        for (int j = 0; j < image.cols; j++)
        {
            img[j + image.cols*i + image.cols*image.rows * 0] = image.at<cv::Vec3b>(i, j)[0];
            img[j + image.cols*i + image.cols*image.rows * 1] = image.at<cv::Vec3b>(i, j)[1];
            img[j + image.cols*i + image.cols*image.rows * 2] = image.at<cv::Vec3b>(i, j)[2];
        }
    }

I cannot access it-- #include "tiffio.h"

Same tif image which is in '.img' format giving 0 for channels,rows and columns. So how to access '.img' format.

I have to read all the intensity values,i.e 3 bands(R,G,B).So how to access it? Original image is ".img" format.

How to read .img files

Hey in ERDAS, ENVI,eCognition softwares image is showing that it is 3 bands image, i.e 3 channel.

Image is in .img format. But Opencv is not reading properly, So i converted to tif format. Generally i have to do the segmentation, for each object i have to perform threshold operation. image.type() is 2. But my image is contains 3 channels. Max is using just to check the value. Not using in my program

I need to perform some operations on the image, For every pixel... And what is the data type i have to use for "image.type". When i used int data type it gave output 2.

This is not the complete code,Part of it...

The image pixels are not reading..

Maximum pixel value of the tiff image is 481. But it is showing maximum is 1.So how to read properly.

#include <opencv2/core/core.hpp>
#include <opencv2\highgui\highgui.hpp>
#include <opencv2\imgproc\imgproc.hpp>
#include <opencv2\nonfree\features2d.hpp>
#include <iostream>

using namespace std;
using namespace cv;

Mat IMG(5620, 4894, CV_8UC3, Scalar(0, 0, 0));
int main()
{
    /* Input Image of 4894*5620 size */
    Mat image = imread("C:\\Users\\IIST\\Desktop\\Madi\\NRSC_OCT\\a.tif",IMREAD_ANYDEPTH);
    //Mat image = imread("D:\\SC15M053\\PROGRAM AND OUTPUTS\\NRSC\\post_image\\53N07_cl.img", IMREAD_ANYDEPTH);
    int ch = image.channels();
    int R = image.rows;
    int C = image.cols;
    cout << "Channles : " << ch << endl << "Rows are : " << R << endl << "Cols are : " << C << endl;
    int max = image.at<Vec3b>(0, 0)[0];;
    //int max = image.at<Vec3b>(258, 519)[2];
    for (int i = 0; i < R; i++)
    {
        for (int j = 0; j < C; j++)
        {
            if (max < image.at<Vec3b>(i, j)[0])
                max = image.at<Vec3b>(i, j)[0];
        }
    }
    cout << "Maximum value of band  : " << max << endl;
    cin.get();
    return(0);
}

Exception: Unhandled exception at 0x000007FFFF05AEA8 in FirstOpencv2.exe: Microsoft C++ exception: cv::Exception at memory location 0x00000034A04EF4E0.