m93c's profile - activity

You can perform dilation/erosion operation to highlight text. If you mean the Tesseract library you can put the special

maybe apply a bitwise_not for the white text plates?

Do you have to read ALL the text on the card? However I'll do something like crop only the card shape from the image and

I think one way is to look for white color (thresholding or masks), draw contours on the new image (only the dice should

Ok, no problem. I've seen it can handle 2-3 classifiers in the main thread so I'll put them there for now.

I wanted to declare a classifier in a thread and then use it only in that thread. Another thread will use a different cl

OpenCV.js in Web Worker problem Hi everyone! In my application I have to use multiple haar cascades so I thought that us

Hi everyone,
I was tring to implement the face detection example with opencv.js.
The problem is that there's no way of importing the necessary haar cascade.
My project structure is as follows:

• index.html
• js
  • myjs.js
  • opencv.js
  • utils.js
• haar
  • haarcascade_frontalface_default.xml

In "myjs.js" I try to load the cascade as shown in the example using my path to the cascade:

let classifier = new cv.CascadeClassifier();
classifier.load('../haar/haarcascade_frontalface_default.xml');

The function returns always false indicating the loading failure, independently if using the relative or the absolute path. Because of this I can't use the "detectMultiScale" function...

Can anyone help me please?

Thanks holger and berak for helping me to solve this problem. After a deep examination of the code in the example I've f

Ok solved, just use the function "createFileFromUrl" from utils.js. I'll post a detailed answer tomorrow because I signe

Ok I launched the index with a webserver, I can query the cascade file but I stiil can't import it. It does not even do

OpenCV.js unable to load haar cascades Hi everyone, I was tring to implement the face detection example with opencv.js.