Expand description
The use case, apart from the interface that asked for it.
kallo-core is the model; this crate is what you do with it. A
photograph is read once, metered, developed at a time and printed on a
paper; a contact proof is the same photograph exposed once through a ladder
of times; a roll is both, from one decode. All of it was written inside
kalo first, where the only way to reach it was a command line. It lives
here now because the app reaches the same work through a function call, and
two implementations of “develop a roll” would be one too many.
The entry points are render(), contact() and roll(). The first
two take a decoded image; the third reads the photograph itself, because a
roll is exactly the case where reading it once matters. A bench session
(PreviewSession) is the same idea for a window: read the photograph once,
then print as many previews of it as the person drags past.
Re-exports§
pub use chart::FilmCurve;pub use chart::FrameChart;pub use chart::PaperChart;pub use chart::PrintChart;pub use chart::PrintChartOptions;pub use chart::chart;pub use chart::chart_for;pub use chart::film_curve;pub use chart::paper_chart;pub use chart::print_chart;pub use chart::print_chart_with;pub use contact::ContactOptions;pub use contact::ContactOutcome;pub use contact::contact;pub use contact::ladder;pub use device::RenderDevice;pub use device::render_device;pub use error::Error;pub use input::read_input;pub use preview::PreviewFrame;pub use preview::PreviewRequest;pub use preview::PreviewSession;pub use render::Backend;pub use render::Exposure;pub use render::OwnedFinishing;pub use render::RenderOptions;pub use render::RenderOutcome;pub use render::render;pub use render::render_image;pub use roll::Progress;pub use roll::RollOutcome;pub use roll::RollRequest;pub use roll::roll;pub use selection::Selection;pub use selection::StockChoice;pub use selection::camera_profile;pub use selection::check_model;pub use selection::resolve;
Modules§
- catalogue
- The catalogue: what is compiled in, as a document a program can read.
- chart
- What the developed strip did, as a densitometer reads it.
- contact
- The proof: the whole ladder on one sheet, exposed once.
- device
- What this machine would render on.
- error
- Failures a user can cause, with enough context to fix them.
- input
- Reading the photograph: an ordinary image, or a camera raw.
- preview
- The bench’s session: one decode, many previews of it.
- render
- One photograph, developed at one time and printed on one paper.
- roll
- A roll: one photograph, one decode, five developments and a proof.
- selection
- Which stocks, which sensor, which exposure — the choices a render is made of.