is it possible to make a image as a background in mpandroidchart? - android-studio

I found this library might be perfect for me as I want to plot a dot onto an image so is it possible to accomplish it using mpandroidchart?

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svg vs canvas - browser game map?

I am trying to make a copy of the popular browser game Travian.com. I am currently working on the maps and I was able to get the farms overview image as a png.
What I am trying to accomplish with that map is:
Each element (farm) should be clickable) and redirect to that specific farm page.
As you could see on the map, farms are not just simple squares.
Once I had the farms.png picture, I used on online tool to convert a png into a .svg file. Using a free software, I was able to draw circles around each map to build my svg.
This is the result:
I recently read about canvas and I was wondering if canvas would be a better option in my case rather using svg?
You need to try it yourself and see if it gets redrawn quickly enough that the game is sufficiently responsive for you. If the map is very detailed, the redraw may be too slow and make your game feel slow. You really need to try it and see. If it's too slow for you, then you may need to either:
use bitmap images, or
keep the maps as SVGs, but render them to a Canvas on first load. This way they'll be sharp at whatever resolution screen the user has.

Phaser 3 load multiple single images from image file

I am new to phaser and I am having hard time to find this, probably cause I don't know how to call it. I know you can very simply load image through url, give it name and then use it in a sprite.
But what if I want to load image, which contains lots of different tiled images and use each of them separately? I'd like to somehow define, that for example rectangle at (x,y), using (width, height) is an image, that I can then use in spritesheet. I found tilemap definition files, but they are usually one file per image.
I found createStaticLayer, where you can pass 2-dimensional array of numbers, where number is order of tile and that works pretty much similarly to how I'd like to use it, but it is for background only and I still can't extract single "image" for single sprite.
How do I do that? How is that called? I am sure it exists, I am just missing it :)

removing shadow from colour image (3-channel (jpg) or 4-channel (png))

I am trying to isolate shadows from this image and remove them:
The reason why I am doing that is because shadow is problematic for my edge detection algorithm.
What should I do to remove the shadow? I haven't done this before, so I do not even know where to start from.
From the similar questions on SO I wasn't able to find anything to help me with my task.
I have the image in both: png and jpg format, so I am not even sure which format to use to start with.
That's a very interesting question. One option you can try is to divide the RGB values in the image by the grayscale intensity of the image. There is apparently another method explained here: https://onlinelibrary.wiley.com/doi/full/10.1002/col.21889.

Edit image, using openGL

I have been doing some searching the last couple of days and I have been curious how to do this. I have a UIImagePickerController.
So I want to add a effect like black and white, sepia, etc. I am creating a custom UIImagePickerVController and I am curious. Can this be done with OpenGL ES? If so, how?
This is possible through the use of pixel shaders using OpenGL-ES 2.0. You could also write an Objective-c++ routine that gets all the pixels of your image into an array then applies a custom algorithm to modify the color of the image.
Edit:
Here are some links that might help get you started.
http://www.sunsetlakesoftware.com/2010/10/22/gpu-accelerated-video-processing-mac-and-ios
http://www.dreamincode.net/forums/topic/76816-image-processing-tutorial/
http://www.efg2.com/Lab/Library/ImageProcessing/Algorithms.htm

Detect an object in image using IMAGEMAGICK

I have an image with Gray Background and 'CUP' in center of it... I want to detect the boundaries of the cup in this image.. After detecting CUP I want to extract the CUP from the image using IMAGEMAGICK.. Note I have many images with different objects (like CUP) in the center and with different background color .. So I am looking for a solution which is applicable to all of them..
Plz comment..
Maybe you could use edge-detection algorithms to isolate the shape of your main object: http://en.wikipedia.org/wiki/Edge_detection
You could also look into the code for the EdgeImage effect in ImageMagick, to see how they do it...

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