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BV


Active since 2013

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studying master's in materials science engineering.

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conversion of pixel values in a gray scale image
I have a gray scale image . I want to convert all the zero pixel values to 255. is there any function to do so?

mer än 11 år ago | 1 answer | 0

1

answer

Question


how to increase or decrease the bounding box?
i have created a bounding box around the blob (desired object) using 'regionprops'. I want to increase the size of the bounding ...

mer än 11 år ago | 1 answer | 0

1

answer

Question


to create AVI from set of images
i have set of images (15 images) which is pre-processed in a loop. later, the output images are displayed in the following loop....

mer än 11 år ago | 2 answers | 0

2

answers

Question


how to measure angle between the lines?
I have plotted the lines with the following code. x = [3 0]; y = [0 9]; line(x,y); a = [1 2]; b = [0 3]; line(...

mer än 11 år ago | 2 answers | 0

2

answers

Question


to find the ROI surrounding the centroid
I have an image that has several objects in it. I have found the centroid of one of the desired objects in them. I want to creat...

mer än 11 år ago | 1 answer | 0

1

answer

Question


how to plot scattered points on 2D graph
I have set of centroid values (horizontal and vertical) for an image. I want to plot these points on a 2D graph. I am not lookin...

mer än 11 år ago | 2 answers | 0

2

answers

Question


Error : while finding histogram for gray scale image (uint8)
Can anyone tell me how to rrecvtify this error?? I have Undefined function or variable 'originalImage'. Error in blobs ...

mer än 11 år ago | 1 answer | 0

1

answer

Question


i want to detect just the ROI from the image.
In a binary image I have two objects , from which I wanted to detect just one object and neglect the others. Is there any sutoma...

mer än 11 år ago | 1 answer | 0

1

answer

Question


How to select the appropriate dilation parameter?
I have a true oolor image. I want to dilate the image for further processing it. There are different types of dilation parameter...

mer än 11 år ago | 1 answer | 0

1

answer

Answered
how to dilate the gray scale image and threshold value only on ROI?
My image is an orthopaedic one (CT image), in which I have a bone and other objects. I created a mask with imellipse , within wh...

mer än 11 år ago | 0

Question


how to dilate the gray scale image and threshold value only on ROI?
I have a gray scale image that has several objects in it. can anyone tell me how to apply threshold only to one object( which is...

mer än 11 år ago | 2 answers | 0

2

answers