stuff
This commit is contained in:
John Cupitt
parent
f9b29783f5
commit
61d4eddbb4
37
ChangeLog
37
ChangeLog
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@ -1,3 +1,24 @@
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16/1/10 started 7.21.2
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- "invalidate" is careful to keep images alive, so invalidate callbacks can do
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im_close()
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- flood_blob could loop if start point == ink
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- added im_meta_remove()
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- added remove profile option to vipsthumbnail
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- added vips_bandfmt_iscomplex() and friends, im_iscomplex() and friends
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deprecated
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- im_bandjoin()/im_gbandjoin() work with images of varying formats
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- added im_copy_native(), deprecated im_copy_from() and friends
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- im_check*() name rationalisation
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- finally removed old flood stuff
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- im_insert*() bandalike and formatalike
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- im_*join() bandalike and formatalike
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- im_ri2c() bandalike
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- im_vips2png() saves 16-bit PNGs, if necessary
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- vipsthumbnail has selectable interpolators, optional sharpen
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15/1/10 started 7.21.1
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- added "written" callbacks, used to implement write to non-vips formats
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26/11/09 started 7.21.0
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- branch for new dev cycle
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- argh, missing init from colour.c (thanks Peter)
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@ -18,22 +39,6 @@
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- read TIFF images strip-wise, not scanline-wise
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- better TIFF YCbCr reading (thanks Ole)
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- isanalyze generates fewer silly error messages
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- added "written" callbacks, used to implement write to non-vips formats
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- "invalidate" is careful to keep images alive, so invalidate callbacks can do
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im_close()
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- flood_blob could loop if start point == ink
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- added im_meta_remove()
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- added remove profile option to vipsthumbnail
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- added vips_bandfmt_iscomplex() and friends, im_iscomplex() and friends
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deprecated
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- im_bandjoin()/im_gbandjoin() work with images of varying formats
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- added im_copy_native(), deprecated im_copy_from() and friends
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- im_check*() name rationalisation
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- finally removed old flood stuff
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- im_insert*() bandalike and formatalike
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- im_*join() bandalike and formatalike
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- im_ri2c() bandalike
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- im_vips2png() saves 16-bit PNGs if necessary
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26/11/09 started 7.20.3
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- updated en_GB.po translation
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14
TODO
14
TODO
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@ -1,17 +1,3 @@
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- vipsthumbnail should let you supply an interpolator instead of bilinear
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eg. --interpolator "yafrsmooth{2}"
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make the sharpening optional?
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- im__convert_saveable() (in im_copy.c) always makes an 8-bit image
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this means we can't save 16-bit PNG!
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- how about im_invalidate_area()? we currently repaint the whole window on
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every paint action in nip2 :-(
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@ -6,7 +6,7 @@ AC_CONFIG_MACRO_DIR(m4)
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# user-visible library versioning
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IM_MAJOR_VERSION=7
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IM_MINOR_VERSION=21
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IM_MICRO_VERSION=1
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IM_MICRO_VERSION=2
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IM_VERSION=$IM_MAJOR_VERSION.$IM_MINOR_VERSION.$IM_MICRO_VERSION
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IM_VERSION_STRING=$IM_VERSION-`date`
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@ -22,9 +22,9 @@ PACKAGE=vips
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# interface changes backwards compatible?: increment age
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# interface changes not backwards compatible?: reset age to 0
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LIBRARY_CURRENT=28
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LIBRARY_REVISION=3
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LIBRARY_AGE=13
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LIBRARY_CURRENT=29
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LIBRARY_REVISION=0
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LIBRARY_AGE=14
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AM_INIT_AUTOMAKE($PACKAGE,$VERSION)
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@ -22,13 +22,15 @@
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#include <vips/vips.h>
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static gboolean verbose = FALSE;
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static int use_disc_threshold = 1024 * 1024;
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static int thumbnail_size = 128;
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static char *thumbnail_format = "tn_%s.jpg";
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static int use_disc_threshold = 1024 * 1024;
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static char *interpolator = "bilinear";;
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static gboolean nosharpen = FALSE;
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static char *export_profile = NULL;
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static char *import_profile = NULL;
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static gboolean delete_profile = FALSE;
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static gboolean verbose = FALSE;
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static GOptionEntry options[] = {
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{ "size", 's', 0, G_OPTION_ARG_INT, &thumbnail_size,
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@ -37,6 +39,10 @@ static GOptionEntry options[] = {
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N_( "set thumbnail format to S" ), "S" },
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{ "disc", 'd', 0, G_OPTION_ARG_INT, &use_disc_threshold,
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N_( "set disc use threshold to N" ), "N" },
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{ "interpolator", 'p', 0, G_OPTION_ARG_STRING, &interpolator,
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N_( "resample with interpolator I" ), "I" },
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{ "nosharpen", 'n', 0, G_OPTION_ARG_NONE, &nosharpen,
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N_( "don't sharpen thumbnail" ), NULL },
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{ "eprofile", 'e', 0, G_OPTION_ARG_STRING, &export_profile,
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N_( "export with profile P" ), "P" },
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{ "iprofile", 'i', 0, G_OPTION_ARG_STRING, &import_profile,
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@ -102,7 +108,7 @@ open_image( const char *filename )
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*
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* We shrink in two stages: first, a shrink with a block average. This can
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* only accurately shrink by integer factors. We then do a second shrink with
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* bilinear interpolation to get the exact size we want.
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* a supplied interpolator to get the exact size we want.
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*/
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static int
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calculate_shrink( int width, int height, double *residual )
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@ -134,12 +140,8 @@ calculate_shrink( int width, int height, double *residual )
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return( shrink );
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}
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/* We use bilinear interpolation for the final shrink. VIPS has higher-order
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* interpolators, but they are only built if a C++ compiler is available.
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* Bilinear can look a little 'soft', so after shrinking, we need to sharpen a
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* little.
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*
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* This is a simple sharpen filter.
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/* Some interpolators look a little soft, so we have an optional sharpening
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* stage.
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*/
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static INTMASK *
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sharpen_filter( void )
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@ -158,28 +160,11 @@ sharpen_filter( void )
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}
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static int
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shrink_factor( IMAGE *in, IMAGE *out )
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shrink_factor( IMAGE *in, IMAGE *out,
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int shrink, double residual, VipsInterpolate *interp )
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{
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IMAGE *t[9];
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IMAGE *x;
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int shrink;
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double residual;
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VipsInterpolate *interp;
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shrink = calculate_shrink( in->Xsize, in->Ysize, &residual );
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/* For images smaller than the thumbnail, we upscale with nearest
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* neighbor. Otherwise we makes thumbnails that look fuzzy and awful.
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*/
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if( residual > 1.0 )
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interp = vips_interpolate_nearest_static();
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else
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interp = vips_interpolate_bilinear_static();
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if( verbose ) {
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printf( "integer shrink by %d\n", shrink );
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printf( "residual scale by %g\n", residual );
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}
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if( im_open_local_array( out, t, 9, "thumbnail", "p" ) )
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return( -1 );
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@ -215,7 +200,10 @@ shrink_factor( IMAGE *in, IMAGE *out )
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/* If we are upsampling, don't sharpen, since nearest looks dumb
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* sharpened.
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*/
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if( residual > 1.0 ) {
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if( residual > 1.0 && !nosharpen ) {
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if( verbose )
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printf( "sharpening thumbnail\n" );
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if( im_conv( x, t[4], sharpen_filter() ) )
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return( -1 );
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x = t[4];
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@ -229,38 +217,41 @@ shrink_factor( IMAGE *in, IMAGE *out )
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(im_header_get_typeof( x, IM_META_ICC_NAME ) ||
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import_profile) ) {
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if( im_header_get_typeof( x, IM_META_ICC_NAME ) ) {
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if( verbose )
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printf( "importing with embedded profile\n" );
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if( im_icc_import_embedded( x, t[5],
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IM_INTENT_RELATIVE_COLORIMETRIC ) )
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return( -1 );
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if( verbose )
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printf( "importing with embedded profile\n" );
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}
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else {
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if( verbose )
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printf( "importing with profile %s\n",
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import_profile );
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if( im_icc_import( x, t[5],
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import_profile,
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IM_INTENT_RELATIVE_COLORIMETRIC ) )
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return( -1 );
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if( verbose )
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printf( "importing with profile %s\n",
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import_profile );
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}
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if( verbose )
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printf( "exporting with profile %s\n", export_profile );
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if( im_icc_export_depth( t[5], t[6],
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8, export_profile,
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IM_INTENT_RELATIVE_COLORIMETRIC ) )
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return( -1 );
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if( verbose )
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printf( "exporting with profile %s\n", export_profile );
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x = t[6];
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}
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if( delete_profile ) {
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if( im_meta_remove( x, IM_META_ICC_NAME ) && verbose )
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if( verbose )
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printf( "deleting profile from output image\n" );
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if( im_meta_remove( x, IM_META_ICC_NAME ) )
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return( -1 );
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}
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if( im_copy( x, out ) )
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@ -269,6 +260,37 @@ shrink_factor( IMAGE *in, IMAGE *out )
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return( 0 );
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}
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static int
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thumbnail3( IMAGE *in, IMAGE *out )
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{
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int shrink;
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double residual;
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VipsInterpolate *interp;
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int result;
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shrink = calculate_shrink( in->Xsize, in->Ysize, &residual );
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/* For images smaller than the thumbnail, we upscale with nearest
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* neighbor. Otherwise we makes thumbnails that look fuzzy and awful.
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*/
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if( !(interp = VIPS_INTERPOLATE( vips_object_new_from_string(
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"VipsInterpolate",
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residual > 1.0 ? "nearest" : interpolator ) )) )
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return( -1 );
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if( verbose ) {
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printf( "integer shrink by %d\n", shrink );
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printf( "residual scale by %g\n", residual );
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printf( "%s interpolation\n", VIPS_OBJECT( interp )->nickname );
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}
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result = shrink_factor( in, out, shrink, residual, interp );
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g_object_unref( interp );
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return( result );
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}
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/* Given (eg.) "/poop/somefile.png", make the thumbnail name,
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* "/poop/tn_somefile.jpg".
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*/
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@ -317,7 +339,7 @@ thumbnail2( const char *filename )
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return( -1 );
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}
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result = shrink_factor( in, out );
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result = thumbnail3( in, out );
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g_free( tn_filename );
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im_close( out );
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