I asked this some days ago already over here at wordpress.stackexchange.com but didn’t get any response since – so I thought it would be legit to ask over here again: I am looking for a way to have one of the additional images sizes saved as PNG. Ideally the PNG-Version would be rendered on upload and … Read more
I had the same issue. I found that I changed the data length. A product of reshape arguments should be equal to a length of an array which you are changing. In your case:
The basics first: The Mean Shift segmentation is a local homogenization technique that is very useful for damping shading or tonality differences in localized objects. An example is better than many words: Action:replaces each pixel with the mean of the pixels in a range-r neighborhood and whose value is within a distance d. The Mean … Read more
You can use Graphics.DrawImage to draw a cropped image onto the graphics object from a bitmap.
getRGB(int x, int y) return you the value of color pixel at location (x,y).You are misinterpreting the returned value.It is in the binary format. like 11…11010101 and that is given to you as int value.If you want to get RGB (i.e. Red, Green, Blue) components of that value use Color class. e.g. Then you can … Read more
RGB->gray conversion actually isn’t an average — different channels are weighed differently. Specifically: This is also mentioned in the documentation. Thus, it’s expected that RGB2GRAY and BGR2GRAY give different results. Regarding the discrepancy between sum-then-divide and divide-then-sum approaches, i.e. between and Recall that cv2.imread returns a uint8 numpy array. Thus, the latter operation (where all channels are combined … Read more
You almost did it. You were tricked by the fact that abs(imagem-255) will give a wrong result since your dtype is an unsigned integer. You have to do (255-imagem) in order to keep the integers unsigned: You can also invert the image using the bitwise_not function of OpenCV:
Assuming the input image is in the following cubemap format: The goal is to project the image to the equirectangular format like so: The conversion algorithm is rather straightforward. In order to calculate the best estimate of the color at each pixel in the equirectangular image given a cubemap with 6 faces: Firstly, calculate polar … Read more
I am trying to create a 16-bit image like so: But I get the error TypeError: Image data can not convert to float.
I am trying to create a 16-bit image like so: But I get the error TypeError: Image data can not convert to float.