How can I get the informations of blocks in a bigimage object?

Hi,

may I ask, how can I get the informations of blocks in a bigimage object? I need the intrinsic coordinates of each blocks that contains my points on a geotiff image.

[Image Analyst]

What do you mean by "the intrinsic coordinates"? Do you just want the starting and ending rows and columns of the blue lines?

[Miklós Förster]

Yes, exactly, but only these blocks which contain red points:)

[Image Analyst]

You mean the red rooftops?

Or the red corners of the rectangle you placed over the image? If it's the rectangle, you know the coordinates of the rectangle since you drew it there. And you should know the coordinates of the rows and columns of the blue lines since I presume you drew those also. So you should have everything you need. If you still can't figure it out, give us the coodrinates of the green rectangle and blue lines.

[Miklós Förster]

I would like to make a region of interest image from the big image. I know the pixel coordinates all of the red points and I want to get somehow the boundary of each blocks in pixel coordinates.

Answer 1

[Pankhuri Kasliwal]

Hello,

You can use a function "getBlock" used to read block of a bigimage.

Please refer to the following link for more details -

https://www.mathworks.com/help/images/ref/bigimage.getblock.html