G22-2024

h1. UML Diagram

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| !PBL4UMLdiagram.png! |

h1.  **1. Config Class**

Represents configuration settings for image processing and display.

h2. **Attributes**:

- `projection_distance: float`: The distance of the projector.

- `projector_distance: float = prd`: Alias for `projection_distance`.

- `img_width: int`: Width of the image.

- `img_height: int`: Height of the image.

- `img_path: String`: Path to the image file.

- `gamma: float`: Gamma value for image correction.

- `overlapWidth: int`: Overlap width between two projected images.

- `side: String`: The side (e.g., left or right) of the image projection.

- `isDualMonitor: boolean`: Indicates if dual monitors are being used.

- `monitorWidth: int`: Width of the monitor.

h2. **Functions**:

- __init__(...)`: Constructor to initialize configuration parameters such as projection distance, image dimensions, overlap width, etc.

- getProjectionDistance(): float`: Returns the projection distance.

- getImgWidth(): int`: Returns the width of the image.

- getImgHeight(): int`: Returns the height of the image.

- getImgPath(): String`: Returns the path of the image.

- getGamma(): float`: Returns the gamma value.

- getOverlapWidth(): int`: Returns the overlap width.

- getSide(): String`: Returns the side (e.g., "left" or "right").

- getIsDualMonitor(): boolean`: Indicates if dual monitors are used.

- getMonitorWidth(): int`: Returns the width of the monitor.

- readConfigFile(): Config`: Reads configuration details from a file and returns a Config object.

h1. **2. ImgProcessor Class**

Handles image processing tasks like blending, gamma correction, and cropping.

h2. **Attributes**:

- config: Config`: Holds a reference to a Config object for accessing settings.

h2. **Functions**:

- __init__(config: Config): void: Constructor to initialize the ImgProcessor with a Config object.

- alphaBlend(l_img: byte[], r_img: byte[]): NDArray`: Blends two images (left and right) and returns the result as an array.

- GammaCorrection(img: byte[]): byte[]: Applies gamma correction to the given image and returns the corrected image.

- CropImage(): byte[]`: Crops the image as per configuration and returns the cropped image.

- operation0(): void`: A placeholder method for any additional operation (not detailed in the diagram).

h1. **3. DisplayImg Class**

Represents an image to be displayed, with attributes like width, height, overlap, and side.

h2. **Attributes**:

- `p_width: int`: Width of the image.

- `p_height: int`: Height of the image.

- `p_overlap: float`: Overlap area of the image.

- `img: byte[]`: The image data in byte format.

- `side: String`: The side (e.g., "left" or "right") where the image is displayed.

h2. **Functions**:

- `__init__(w: int, h: int, overlap: float, img: byte[], side: String): void`: Constructor to initialize the image dimensions, overlap, and side.

- `getImg(): byte[]`: Returns the image data.

- `getWidth(): int`: Returns the width of the image.

- `getHeight(): int`: Returns the height of the image.

- `getOverlap(): int`: Returns the overlap area.

- `getSide(): String`: Returns the side of the image.

h1. **4. MainStitcher Class**

Main controller class for image stitching and display.

h2. **Attributes**:

- `displayImg: DisplayImg`: Holds a reference to a DisplayImg object for managing image display.

h2. **Functions**:

- `__init__(dlImg: int): void`: Constructor to initialize the main stitcher with a DisplayImg object.

- `singleDisplay(): void`: Manages the display of a single image.

- `doubleDisplay(monitorWidth: int): void`: Manages the display of two images, considering the monitor width.

- `main(): void`: The main method that runs the entire program workflow.

h1.  Summary of Interactions:

- The Config class provides settings to other classes (`ImgProcessor` and `MainStitcher`).

- The ImgProcessor uses Config to process images.

- The DisplayImg class stores the image data and provides its properties to `MainStitcher`.

- The MainStitcher orchestrates the overall workflow, including image stitching and display management.