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Add chromaSubsampling and isProgressive to metadata #1186

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Lovell Fuller
2018-10-02 17:11:25 +01:00
parent 60438ebfe5
commit 17f942c802
6 changed files with 96 additions and 0 deletions
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lib/input.js
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@@ -183,6 +183,8 @@ function clone () {
* - `channels`: Number of bands e.g. `3` for sRGB, `4` for CMYK
* - `depth`: Name of pixel depth format e.g. `uchar`, `char`, `ushort`, `float` [...](https://github.com/libvips/libvips/blob/master/libvips/iofuncs/enumtypes.c#L672)
* - `density`: Number of pixels per inch (DPI), if present
* - `chromaSubsampling`: String containing JPEG chroma subsampling, `4:2:0` or `4:4:4` for RGB, `4:2:0:4` or `4:4:4:4` for CMYK
* - `isProgressive`: Boolean indicating whether the image is interlaced using a progressive scan
* - `hasProfile`: Boolean indicating the presence of an embedded ICC profile
* - `hasAlpha`: Boolean indicating the presence of an alpha transparency channel
* - `orientation`: Number value of the EXIF Orientation header, if present