Add the tutorials from the old site

Move the tutorial articles from the old site here.

Author: leejuyuu

content/blog/2-0-2-supports-vec-file/add-formats.png

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+title = "2.0.2 supports .vec file"
+date = 2014-07-31T15:10:05+02:00
+updated = 2014-07-31T15:10:05+02:00
+draft = false
+template = "blog/page.html"
+
+[taxonomies]
+authors = ["Stefan Fiel"]
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+
+In 2.0.2 (we just noticed that we are now the half of not found :)
+a new feature was introduced which is very useful for us
+and we think it may be useful for those of you who also work in the computer vision field.
+We are now able to load the .vec file of the OpenCV Cascade Classifier.
+So you can easily control if the patches you trained,
+or the patches [OpenCV](https://opencv.org/) created automatically are correct.
+Of course we have not added the .vec extension to the default settings of nomacs, because there exists a lot of other vec files.
+Thus, you have to add the extension to nomacs manually.
+You can do this by opening the “File” -> “Add Image Format”  dialog.
+Then you can drag&drop your file into the dialog or use the browse to the file.
+
+![add-formats](add-formats.png)
+
+After clicking add you have to name the new file format.
+After that you can open your .vec files with nomacs.
+
+<img alt="img-2014-07-31 09.22.22" src="img-2014-07-31-09.22.22.png" width="100%">
+
+Due to some limitations of the fileformat nomacs assumes that the patches are square
+and thus if you open a file containing non-square nomacs is unable to load it.
+If you want to use non-square patches you have to specify the size in the file name.
+You can do this by adding “-w\[width\]-h\[height\]”.
+So for example you have to name your file “samples-w35-h25.vec”.
+Have fun with this feature and may it simplify your training step
+— the nomacs team

content/blog/2-0-2-supports-vec-file/img-2014-07-31-09.22.22.png

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+title = "Adding new file formats"
+date = 2014-10-01T09:15:02+02:00
+updated = 2014-10-01T09:15:02+02:00
+draft = false
+template = "blog/page.html"
+
+[taxonomies]
+authors = ["Stefan Fiel"]
++++
+
+Since the last release we are getting more and more requests if we can support different file formats.
+Apparently it turned out, that we already support most of them but we have not added the file extension to our file filter.
+This is especially true for RAW formats of image files,
+we just simple don’t know all extensions of all manufacturers and we don’t have sample images from all of them for testing.
+
+But there is a simple solution: you can easily try to add new files formats to nomacs.
+You just have to use File -> Add Image Format
+– this opens a dialog where you can drop (or load) your images and nomacs will tell you if the file extension is supported.
+If it is supported it will display the image.
+After adding the file format you can use our File Filter settings in the preferences dialog
+to set nomacs as default viewer for these images.
+If you have successfully added a new file format,
+please drop us a note in our bug tracker and we will add the extension to nomacs.
+If nomacs is unable to load you file format, please add a new feature request.
+If possible attach also the image to the request so we can test it easily.
+
+Open the “Add Image Format” Dialog
+
+<img alt="Open the “Add Image Format” Dialog" src="add-file-format.png" width="100%"/>
+
+and drop or load your image
+
+<img alt="and drop or load your image" src="add-file-format2.png" width="100%"/>
+
+— the nomacs team