G’MIC JPEG artefacts node

This documentation is for version 0.3 of G’MIC JPEG artefacts.

Description

This filter simulates the JPEG compression artifacts, using DCT quantization on 8x8 blocs.

Author: David Tschumperle. Latest update: 2017/05/07.

Wrapper for the G’MIC framework (http://gmic.eu) written by Tobias Fleischer (http://www.reduxfx.com).

Inputs

Input Description Optional
Input   No

Controls

Parameter / script name Type Default Function
Quality (%) / Quality_ Integer 50  
Preview type / Preview_type Choice Full

Full
Forward horizontal
Forward vertical
Backward horizontal
Backward vertical
Duplicate top
Duplicate left
Duplicate bottom
Duplicate right
Output Layer / Output_Layer Choice Layer 0

Merged
Layer 0
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
Layer 7
Layer 8
Layer 9
Resize Mode / Resize_Mode Choice Dynamic

Fixed (Inplace)
Dynamic
Downsample 1/2
Downsample 1/4
Downsample 1/8
Downsample 1/16
Ignore Alpha / Ignore_Alpha Boolean Off  
Preview/Draft Mode / PreviewDraft_Mode Boolean Off  
Log Verbosity / Log_Verbosity Choice Off

Off
Level 1
Level 2
Level 3