Archive for the ‘C++’ Category

An example to extract IPTC data using QMeta

03Mar10

Extracting IPTC data using QMeta is pretty much the same as extracting EXIF data as in my previous post – Using QMeta to extract Exif data in your Qt applications. So, here I only give you a simple example to extract object name and keywords from a picture. As usual, you can find the full [...]


Filed under: C++, Ollix, Qt   |  Leave a Comment
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Using QMeta to extract Exif data in your Qt applications

05Feb10

In the C++ world, there are not too many options to extract Exif data from images. So far, I have found only two considerable libraries, they are libexif in C and Exiv2 in C++, respectively. However, both of them are not easy to be integrated into Qt applications in my opinion. Qt is a great [...]


Filed under: C++, Ollix, Programming, Qt   |  13 Comments
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Creating thumbnail images in Qt

30Jan10

Recently I need to create thumbnail images in one of my Qt applications, so I googled the Internet and found an article called Creating thumbnail preview by Ariya Hidayat. Ariya introduced three methods to create thumbnail images, all of them uses the QImage::scaled() function. Here’s a quick review of the three methods he introduced respectively. [...]


Filed under: C++, Programming, Qt   |  8 Comments
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