![]() See the code below.I am working on visual studio 2010 and opencv-2.4.9 and i want to put unicode text on image using puttext function but puttext function not working properly with unicode text(japanease,arabic etc) and dispaly text on image as"?" but puttext() with english text work properly.Ĭv::putText(m,"名前",cv::Point((m.cols/2,m.rows/2),cv::FONT_ITALIC.5,cv::Scalar(180,180,180),1,CV_AA) please help me for showing unicode text on imageĬv::putText(m,"名前",cv::Point((m.cols/2,m.rows/2),cv::FONT_ITALIC. The third optional argument is used to set the bottom left position as origin if it’s true, but by default, it is set to false, and it will flip the text.įor example, let’s create a black colored 512-by-512 image using the zeros() function of the numpy library and then put some random text on it using the putText() function. The second optional argument is the line type or style, set to cv2.LINE_8 by default. ![]() The first optional argument is the thickness of the line, and its value should be an integer by default. There are also three optional arguments that we can set, and if we don’t set the value of the optional argument, a default value will be used. The sixth argument is the text’s color, and its value should be an RGB triplet like (255,255,255) for white color.Īll the above arguments are required, and if one or more arguments are missing, there will be an error. The fifth argument is the font size or font scale, and its value should be of data type double. The fourth argument is the font family, which can be from the default font families of OpenCV like cv2.FONT_HERSHEY_SIMPLEX. Unfortunately, it is not possible in OpenCV to use a font beyond the. It is represented as a tuple of 2 values (X, Y). OpenCV provides a set of standard fonts that a developer can use to write text on an image. org: It is the coordinates of the Bottom-Left corner of your text. text: The text you want to write on the image. img: The Image on which you want to write the text. Mat image Mat::zeros ( windowheight, windowwidth, CV8UC3 ) Then we proceed to draw crazy stuff. In this example, rng is a RNG element initialized with the value 0xFFFFFFFF. The location’s value should be set using two integers in which the first integer defines the x-axis position and the second integer defines the y-axis position.įor example, if we set the location to (10,20), it will place the text 10 pixels away on the x-axis and 20 pixels away on the y-axis from the origin, which is at the image’s top-left. This project combines the concept of Optical Character Recognition (OCR) and Text to Speech Synthesizer (TTS) in Raspberry pi to enable user to hear the. OpenCV contains putText () method which is used to put text on any image. We observe that first thing we do is creating a Random Number Generator object (RNG): RNG implements a random number generator. Tesseract doesnt have a built-in GUI, but there are several available from the 3rdParty page. It can be used directly, or (for programmers) using an API to extract printed text from images. Performs text detection using OpenCV’s EAST text detector, a highly accurate deep learning text detector used to detect text in natural scene images. ![]() The third argument is the location on which we want to put the text, and by default, the location origin is the top-left of the image. Tesseract is an open source text recognition (OCR) Engine, available under the Apache 2.0 license. The second argument is the text (string) we want to put on the image. The first argument of the putText() function is the image we want to put the text. You could draw the text twice on the image: one for your outline and the other for your text. We can use the putText() function of OpenCV to put text on an image with our desired color, font size, font family, and location. Use the putText() Function of Opencv to Put Text on Images in Python This tutorial will discuss putting text on images using the putText() function of OpenCV in Python.
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