SeamCarving | Image processing method that allows to remove an object | Computer Vision library
kandi X-RAY | SeamCarving Summary
kandi X-RAY | SeamCarving Summary
Seam carving (or liquid rescaling) is an algorithm for content-aware image resizing. It functions by establishing a number of seams (paths of least importance) in an image and automatically removes seams to reduce image size or inserts seams to extend it. Seam carving also allows manually defining areas in which pixels may not be modified, and features the ability to remove whole objects from photographs. This method is known as Image Retargeting.
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Trending Discussions on SeamCarving
QUESTION
I've been struggling to find the best way to use Web Workers while utilizing Webpack 5 and typescript. I try to follow the documentation, however, when I try to create a Web Worker, I am experiencing the following error:
...ANSWER
Answered 2021-Mar-19 at 18:36I figured out my problem,
Incorrect output block:
QUESTION
I am trying to call a CUDA kernel from a C++ program. I am using CMake to manage the build process.
CMakeLists.txt
...ANSWER
Answered 2020-Sep-25 at 09:02MyLibrary
is not a variable, it's a CMake target. The syntax ${variable}
is used to substitute the contents of a variable. The correct syntax to create a dependency to MyLibrary
is this:
target_link_libraries( myProject PRIVATE MyLibrary )
The syntax is probably correct in the case of ${OpenCV_LIBS}
. It's common practice that packages define a variable that contains the names of the libraries that need to be included to use the package. So in your case, ${OpenCV_LIBS}
might evaluate to something like "OpenCV_lib1 OpenCV_lib2"
.
A few other improvements you could make:
- It's a bad idea to
GLOB
your source files. The glob will be evaluated at configure-time, and if you add files to your directory without re-running CMake configuration, they will not be taken in consideration. The canonical way AFAIK is to just list your sources explicitly. - Consider using
target_include_directories
instead ofinclude_directories
, to limit the effect to just the appropriate target.
QUESTION
I have the definition of "dual-energy gradient" (Reference) of pixel (x, y)
is Δ^2(x, y) + Δy^2(x, y)
, where the square of the x-gradient Δx^2(x, y) = Rx(x, y)^2 + Gx(x, y)^2 + Bx(x, y)^2
and where the central differences Rx(x, y), Gx(x, y), and Bx(x, y) are the absolute value in differences of red, green, and blue components between pixel (x + 1, y) and pixel (x − 1, y) and similar for y-gradient.
How do I calculate this efficiently using numpy?
I am not sure if the numpy.gradient can help me out of box.
...ANSWER
Answered 2018-Feb-25 at 13:53Assuming I understood your formulas correctly, here's what I would suggest:
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