Struct PaletteStego 

pub struct PaletteStego;

Palette-based steganography adapter for GIF/PNG indexed images (STUB).

NOT YET IMPLEMENTED: Requires palette extraction from indexed color images. The image crate converts all images to RGBA8, losing original palette data.

TODO(T13): Implement palette steganography:

• Extract palette data from GIF/PNG indexed color images
• Store palette as bytes in CoverMedia.metadata["palette"]
• Embed payload in LSBs of palette R/G/B bytes
• Capacity: (palette_size * 3) / 8 bytes
• Re-encode image with modified palette (pixel indices unchanged)
• Requires format-specific handling (GIF vs indexed PNG)

Implementations

impl PaletteStego

pub const fn new() -> Self

Create a new palette steganography embedder.

Trait Implementations

impl Debug for PaletteStego

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PaletteStego

fn default() -> PaletteStego

Returns the “default value” for a type.

impl EmbedTechnique for PaletteStego

fn technique(&self) -> StegoTechnique

The technique identifier for this implementation.

fn capacity(&self, _cover: &CoverMedia) -> Result<Capacity, StegoError>

Estimate how many payload bytes cover can hold.

fn embed( &self, _cover: CoverMedia, _payload: &Payload, ) -> Result<CoverMedia, StegoError>

Embed payload into cover, returning the stego cover.

impl ExtractTechnique for PaletteStego

fn technique(&self) -> StegoTechnique

The technique identifier for this implementation.

fn extract(&self, _cover: &CoverMedia) -> Result<Payload, StegoError>

Extract a hidden payload from stego.