Mar 21, 2018 · does anyone know how to write a code(C/C++) to put text into images without using the puttext function in opencv? I'd been google-ing for this function for quite awhile, but didn't manage to get a solution.

Feb 4, 2021 · In this article, we will discuss how to write over an image using OpenCV C++. Function putText() from OpenCV C++ library will be used to write text on an image. Program 1: Below program shows how to write text over a blank background image:

Mar 10, 2025 · This guide provides a step-by-step approach to adding text to images using the OpenCV library in C++. We'll cover loading images, defining text properties, overlaying text, and optionally, creating transparent text effects using masks.

Jan 13, 2021 · In this article, we will discuss to open an image using OpenCV (Open Source Computer Vision) in C++. Unlike python, any additional libraries in C++ are not required. OpenCV C++ comes with this amazing image container Mat that handles everything for us.

Mar 10, 2021 · Learn how to put text in an image using OpenCV with C++. This guide provides step-by-step instructions and code examples.

Feb 9, 2010 · If there is a jpg image of a soccer ball and the text "this is a soccer ball" at the bottom... you want to use c++ to return the text? Come on... –

Sep 11, 2013 · How can I open an JPEG image file in C++, convert it to a grayscale image, get its histogram, resize it to a smaller image, crop a particular area of it, or show a particular area of it? For these tasks, is C or C++ faster in general?

Dec 31, 2024 · Learn how to display a JPEG image in C++ effortlessly with this comprehensive guide. Discover step-by-step instructions and useful code snippets to ensure seamless integration and optimal performance.

Apr 16, 2025 · Adding Text. Adding text to images is a key aspect of image annotation, useful for labeling objects, adding instructions, or displaying coordinates. OpenCV provides the putText() function in both Python and C++ to overlay custom text onto images with control over font style, size, color, and positioning. Python

Apr 10, 2016 · In Opencv we can put Text on an Image by using putText() function. Syntax: C++: void putText(Mat& img, const string& text, Point org, int fontFace, double fontScale, Scalar color, int thickness=1, int lineType=8, bool bottomLeftOrigin=false ) Parameters: img – Image. text – Text string to be drawn.