I have a 100×100 image: I get all of its pixels and I calculate the average RGB of that image: I also have a reference RGB of a different color: I know now want to add a filter to the image, so that the avgRgbOfImg gets pretty close to my refRgb: In simpler terms, I have an image and I
Tag: canvas
How can I load a canvas inside a div with Vue?
I am really new to Vue and for this project, I was trying to load canvas inside a div. If the canvas is loaded outside of a div it works correctly but I want to display a canvas if loadModal is true only. In this code I have used two canvas one is inside div and other one is outside
Animating multiple circles in a canvas
I’m trying to make an animation inside a canvas: here, a numbered circle must be drawn and move from left to right one single time, disappearing as soon as it reaches the end of animation. For now I managed to animate it in loop, but I need to animate at the same time (or with a set delay) multiple numb…
The first frame captured by the canvas becomes completely black after outputting to the img
I try many articles and methods but still can’t solve it, I hope to get a little hint Then English is not my native language, sorry Answer You are mixing a few pieces of code here… The img.onload part works for when you want to draw that img on the canvas. Here you are not in this case, you want
Making a game, should i load all the sprite animation images before start the game?
It’s better to load all animations sprites in a array before start or do this that also works fine too: Answer Preloading is usually the best thing to do (at least for frequently used assets, such as animation sprites), for these reasons: Fetching resources over a network has a latency cost associated w…
html5/css/javascript : How to superpose two canvas in a div
Hello I’m stuck on a superposition problem of two canvas. Here is a simplified example. Note that in the real application, buttons and drawings are far more complicated and that I want to keep the structure with html5 / css / javascript. I suppose that I miss something in the css to succeed to have thes…
How to drag html shapes into mxgraph canvas
I want to drag and drop those 3 shapes into mxgraph canvas (which is the black area). Note: I want to fully preserve the drag element on the canvas, including shape, size, color, text, etc. I don’t know whether insertVertex does it work. Dragging the orange,red or other box in to the dark area currently…
JavaScript canvas image generation add spacing between letters
I need your help. I’m currently trying to write a text 2 png library to generate PNGs including inline styling for every single letter. Currently I’m really stuck trying to add a spacing between each letter. At the moment every letter is written like in layers above each one: Do you have any good …
Canvas zoom to cursor doesn’t work correct
I’m trying to scale canvas to/from mouse position, but it works not perfect (always goes few cells away from mouse pos). I’ve read all similar posts but i don’t know what’s wrong. https://jsfiddle.net/shumikua/3afxtmqw/ All code is only to run snippet, it works good. Problem is in func…
Canvas linear gradient taking the value of another input type color field
So I have this simple image editor where I’m using a canvas to draw in a user-selected image and some texts. That is the user can upload an image and then if they want they can add texts or just change the gradient of the image. Right now the app works perfectly fine except there is one issue. How to