While working with text processing we might need to find the index of first occurrence of a substring in a string. A table includes a links to posts with examples...

While working with text processing we might need to count number of occurrences of a substring in a given string. A table includes a links to posts with examples using...

A search engine bot also known as web crawler or spider is a type of bot that is used to index web content in order to present websites in search...

There might be cases when we want to hide the part of content or display different content on mobile devices. Usually, we apply different rules for different devices on the...

While working with text processing we might need to get length of the given string. Programming languages provides various methods to do that. A table includes a links to posts...

Histogram equalization is a method in image processing that allows to adjust the contrast of an image using histogram. Histogram equalization transforms pixel intensity values so that the histogram of...

HSV is a color space that has three components: hue, saturation and value. When implementing object tracking based on color, images are often converted from RGB to HSV color space...

While working with image processing, we might need to save an intermediate image or final resulting image to a specified file. OpenCV provides the imwrite function that allows to save...

While working with text processing we might need to get last N characters of a string. Programming languages provides various methods to do that. A table includes a links to...

While working with text processing we might need to get first N characters of a string. Programming languages provides various methods to do that. A table includes a links to...