* final step: open your menu editor, create a new launcher, type: Application, name: SmillaEnlarger, path: '/home/ user/opt/SmillaEnlarger/./SmillaEnlarger', save it. * do this for all the kinds of image files you want to open with SmillaEnlarger (png.). * select one of your jpeg files open with / other application / and select personalized command "/home/ user/opt/SmillaEnlarger/./SmillaEnlarger" (but don't tick "remember choice") SmillaEnlarger will open with your ipeg image close it next time your will select a jpeg file, SmillaEnlarger will appear in the list of "open with" apps. * test open a terminal in '/home/ user/opt/SmillaEnlarger' and launch SmillaEnlarger, by typing "./SmillaEnlarger". Before, the most used method was bicubic scaling or by means of fractal operations, but these programs could be really expensive. * make SmillaEnlarger file executable (select it in your file manager, properties, permissions, tick executable). SmillaEnlarger’s algorithm does a remarkable job of turning even an incredibly minute bitmap into something close to a blurry snapshot. With SmillaEnlarger well have a brilliant program that will help us to rescale images, managing to make them a lot bigger without practically losing definition. Copy this file "SmillaEnlarger" and the images "Smilla.bmp", "Smilla.icns", "Smilla.ico", "Smilla.png" to '/home/ user/opt/SmillaEnlarger' directory. * in 'SmillaEnlargerSrc', there is a new file "SmillaEnlarger". * in your '/home/ user/opt' directory (where user is your username), create a new directory 'SmillaEnlarger'. * go to the 'SmillaEnlarger_0.9.1_source' (same name) inside this directory, then to 'SmillaEnlargerSrc' directory. * extract the source, you will get a 'SmillaEnlarger_0.9.1_source' directory. Of course just about every graphics editor has a Resize option that will do this already, but SmillaEnlarger aims to produce much better quality results, with less of the blurring or pixelated look that you might see elsewhere. * since version 0.9.1 is designed for Qt5, install the package "qt5-default" with your package manager (Synaptic) this will tell the system that compiling will be made with Qt5 qmake, and not Qt4 one. SmillaEnlarger is an easy-to-use graphics tool for enlarging images. * download the source "SmillaEnlarger_0.9.1_source.zip" from. The solution is to compile SmillaEnlarger, and manually install it. It was easily available from Dhor ppa for Mint 19.x, but is no longer available from this source since Dhor ppa is not compatible with Ubutu 20.04. With it you can enlarge an image of several hundreds percents, without pixelisation and with a good rendering. SmillaEnlager is a small graphic utility, used to enlarge images.
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