install vips over ubuntu

➜  vips-8.6.0 sudo apt-get install glib2.0-dev

➜  vips-8.6.0 sudo apt-get install gobject-introspection  python-gi-dev libgirepository1.0-dev
➜  vips-8.6.0 sudo apt-get install libjpeg-dev libexif-dev libgif-dev librsvg2-dev poppler-utils libgsf-1-common libtiff-dev fftw3 liblcms2-dev  libpng-dev  libpangoft2-1.0-0  liborc-0.4 libmatio-dev libcfitsio-dev libwebp-dev libopenexr-dev libopenslide-dev swig  python python-dev  graphicsmagick imagemagick                                

vips copy cropbox.pdf x.png 分辨率明显不行 vips pdfload --dpi 600 cropbox.pdf x.png