Add icc argument

crates/typst-layout/src/image.rs

@@ -51,9 +51,14 @@ pub fn layout_image(
 
     // Construct the image itself.
     let kind = match format {
-        ImageFormat::Raster(format) => {
-            ImageKind::Raster(RasterImage::new(data.clone(), format).at(span)?)
-        }
+        ImageFormat::Raster(format) => ImageKind::Raster(
+            RasterImage::new(
+                data.clone(),
+                format,
+                elem.icc(styles).as_ref().map(|icc| icc.derived.clone()),
+            )
+            .at(span)?,
+        ),
         ImageFormat::Vector(VectorFormat::Svg) => ImageKind::Svg(
             SvgImage::with_fonts(
                 data.clone(),

crates/typst-library/src/text/font/color.rs

@@ -105,8 +105,11 @@ fn draw_raster_glyph(
     raster_image: ttf_parser::RasterGlyphImage,
 ) -> Option<()> {
     let data = Bytes::new(raster_image.data.to_vec());
-    let image =
-        Image::new(RasterImage::new(data, ExchangeFormat::Png).ok()?, None, Smart::Auto);
+    let image = Image::new(
+        RasterImage::new(data, ExchangeFormat::Png, Smart::Auto).ok()?,
+        None,
+        Smart::Auto,
+    );
 
     // Apple Color emoji doesn't provide offset information (or at least
     // not in a way ttf-parser understands), so we artificially shift their

crates/typst-library/src/visualize/image/mod.rs

@@ -127,6 +127,21 @@ pub struct ImageElem {
     /// _Note:_ The exact look may differ across PDF viewers.
     pub scaling: Smart<ImageScaling>,
 
+    /// An ICC profile for the image.
+    ///
+    /// ICC profiles define how to interpret the colors in an image. When set
+    /// to `{auto}`, Typst will try to extract an ICC profile from the image.
+    #[parse(match args.named::<Spanned<Smart<DataSource>>>("icc")? {
+        Some(Spanned { v: Smart::Custom(source), span }) => Some(Smart::Custom({
+            let data = Spanned::new(&source, span).load(engine.world)?;
+            Derived::new(source, data)
+        })),
+        Some(Spanned { v: Smart::Auto, .. }) => Some(Smart::Auto),
+        None => None,
+    })]
+    #[borrowed]
+    pub icc: Smart<Derived<DataSource, Bytes>>,
+
     /// Whether text in SVG images should be converted into curves before
     /// embedding. This will result in the text becoming unselectable in the
     /// output.

crates/typst-library/src/visualize/image/raster.rs

@@ -12,7 +12,7 @@ use image::{
 };
 
 use crate::diag::{bail, StrResult};
-use crate::foundations::{cast, dict, Bytes, Cast, Dict, Value};
+use crate::foundations::{cast, dict, Bytes, Cast, Dict, Smart, Value};
 
 /// A decoded raster image.
 #[derive(Clone, Hash)]
@@ -23,31 +23,43 @@ struct Repr {
     data: Bytes,
     format: RasterFormat,
     dynamic: image::DynamicImage,
-    icc: Option<Vec<u8>>,
+    icc: Option<Bytes>,
     dpi: Option<f64>,
 }
 
 impl RasterImage {
     /// Decode a raster image.
-    pub fn new(data: Bytes, format: impl Into<RasterFormat>) -> StrResult<RasterImage> {
-        Self::new_impl(data, format.into())
+    pub fn new(
+        data: Bytes,
+        format: impl Into<RasterFormat>,
+        icc: Smart<Bytes>,
+    ) -> StrResult<RasterImage> {
+        Self::new_impl(data, format.into(), icc)
     }
 
     /// The internal, non-generic implementation.
     #[comemo::memoize]
     #[typst_macros::time(name = "load raster image")]
-    fn new_impl(data: Bytes, format: RasterFormat) -> StrResult<RasterImage> {
+    fn new_impl(
+        data: Bytes,
+        format: RasterFormat,
+        icc: Smart<Bytes>,
+    ) -> StrResult<RasterImage> {
         let (dynamic, icc, dpi) = match format {
             RasterFormat::Exchange(format) => {
-                fn decode_with<T: ImageDecoder>(
+                fn decode<T: ImageDecoder>(
                     decoder: ImageResult<T>,
-                ) -> ImageResult<(image::DynamicImage, Option<Vec<u8>>)> {
+                    icc: Smart<Bytes>,
+                ) -> ImageResult<(image::DynamicImage, Option<Bytes>)> {
                     let mut decoder = decoder?;
-                    let icc = decoder
-                        .icc_profile()
-                        .ok()
-                        .flatten()
-                        .filter(|icc| !icc.is_empty());
+                    let icc = icc.custom().or_else(|| {
+                        decoder
+                            .icc_profile()
+                            .ok()
+                            .flatten()
+                            .filter(|icc| !icc.is_empty())
+                            .map(Bytes::new)
+                    });
                     decoder.set_limits(Limits::default())?;
                     let dynamic = image::DynamicImage::from_decoder(decoder)?;
                     Ok((dynamic, icc))
@@ -55,9 +67,9 @@ impl RasterImage {
 
                 let cursor = io::Cursor::new(&data);
                 let (mut dynamic, icc) = match format {
-                    ExchangeFormat::Jpg => decode_with(JpegDecoder::new(cursor)),
-                    ExchangeFormat::Png => decode_with(PngDecoder::new(cursor)),
-                    ExchangeFormat::Gif => decode_with(GifDecoder::new(cursor)),
+                    ExchangeFormat::Jpg => decode(JpegDecoder::new(cursor), icc),
+                    ExchangeFormat::Png => decode(PngDecoder::new(cursor), icc),
+                    ExchangeFormat::Gif => decode(GifDecoder::new(cursor), icc),
                 }
                 .map_err(format_image_error)?;
 
@@ -115,7 +127,7 @@ impl RasterImage {
                     PixelEncoding::Lumaa8 => to::<image::LumaA<u8>>(&data, format).into(),
                 };
 
-                (dynamic, None, None)
+                (dynamic, icc.custom(), None)
             }
         };
 
@@ -405,8 +417,7 @@ fn format_image_error(error: image::ImageError) -> EcoString {
 
 #[cfg(test)]
 mod tests {
-    use super::{ExchangeFormat, RasterImage};
-    use crate::foundations::Bytes;
+    use super::*;
 
     #[test]
     fn test_image_dpi() {
@@ -414,7 +425,7 @@ mod tests {
         fn test(path: &str, format: ExchangeFormat, dpi: f64) {
             let data = typst_dev_assets::get(path).unwrap();
             let bytes = Bytes::new(data);
-            let image = RasterImage::new(bytes, format).unwrap();
+            let image = RasterImage::new(bytes, format, Smart::Auto).unwrap();
             assert_eq!(image.dpi().map(f64::round), Some(dpi));
         }
 

crates/typst-svg/src/text.rs

@@ -247,7 +247,12 @@ fn convert_bitmap_glyph_to_image(font: &Font, id: GlyphId) -> Option<(Image, f64
         return None;
     }
     let image = Image::new(
-        RasterImage::new(Bytes::new(raster.data.to_vec()), ExchangeFormat::Png).ok()?,
+        RasterImage::new(
+            Bytes::new(raster.data.to_vec()),
+            ExchangeFormat::Png,
+            Smart::Auto,
+        )
+        .ok()?,
         None,
         Smart::Auto,
     );