Overview

The HotPixelRemove process removes hot pixels from the image.

Its configuration is managed via ALS preferences.

Configuration

Control

This process is controlled by the Preprocess pipeline.

Input

Behavior

graph LR

START([START])

TEST_ENABLED{{Process enabled?}}
TEST_COLOR{{Color image?}}

COMPUTE[Compute average value of neighbors of each pixel]
REPLACE[Replace hot pixel value with the average of its neighbors]

RETURN[Return modified image]
UNCHANGED[Return unchanged image]

END([END])

START --> TEST_ENABLED
TEST_ENABLED -->|Yes| TEST_COLOR
TEST_COLOR ---->|Yes| UNCHANGED
TEST_ENABLED ---->|No| UNCHANGED
TEST_COLOR -->|No| COMPUTE
COMPUTE --> REPLACE
REPLACE --> RETURN
RETURN --> END
UNCHANGED --> END

classDef bounds fill: #333, stroke: #666, stroke-width: 2px, color: #BBB, font-family: 'Poppins', sans-serif
classDef step fill: #444, stroke: #622, stroke-width:2px, color: #c6c6c6, font-family: 'Poppins',sans-serif
classDef wait  fill: #444, stroke: #262,stroke-width: 2px, color: #c6c6c6, font-family:'Poppins', sans-serif
classDef test fill: #444, stroke: #226, stroke-width: 2 px, color: #c6c6c6, font-family: 'Poppins', sans-serif

class START bounds
class TEST_ENABLED test
class TEST_COLOR test
class COMPUTE step
class UNCHANGED step
class REPLACE step
class RETURN step
class END bounds

Each pixel in the image whose value deviates too much from its neighbors is considered a hot pixel.

Its value is replaced by the average value of its neighbors.

Output

The modified image is sent back to the Preprocess pipeline.