VFX Atlas
M 114 / 18305 Video & Glitchalgorithm output

JPEG Compression Artifacts

Jpeg Compression Artifacts. video, signal & glitch

Typeface · Space Mono

Real-world algorithm demonstration, applied to a NASA portrait.
Real-world algorithm demonstration, applied to a NASA portrait.Image: NASA / Eileen Collins · scikit-image (public domain)View source ↗

Prompt

Apply a JPEG Compression Artifacts effect with visible square block boundaries, smeared fine textures, and stepped tonal transitions. Add ringing halos and mosquito-like speckles around sharp edges, plus coarse color blotches in detailed regions. Preserve recognizable forms beneath the degraded digital surface; keep the original subject and composition.

Paste it into LetzAI with your own image to apply the effect ↗

Identify

Block boundaries and ringing1 destroy fine details.

Principle

Strong lossy JPEG quantization changes DCT coefficients2.

Try it out

Save the same image multiple times.

Classification

Calculated image processing result.

Further examples · 7 images

01 JPEG JPG compression image quality degradation - comparison of photo quality and file size saved with different quality settings
02 01 JPEG JPG compression image quality degradation - comparison of photo quality and file size saved with different quality settingsA grid displays a city scene with progressively lower quality settings and corresponding close-ups. It illustrates how high quantization levels lead to severe blockiness and loss of detail in the 99% compression sample.Marek Ślusarczyk (Tupungato) Photo portfolio · CC BY 3.0 · Wikimedia Commons
Visual impact of a jpeg compression on Photoshop
03 Visual impact of a jpeg compression on PhotoshopMultiple crops of a girl's face show various JPEG quality levels from Adobe Photoshop. The 400% zoom clearly demonstrates the typical 8x8 pixel block boundaries that appear as quality settings decrease.Basile Morin · CC BY-SA 4.0 · Wikimedia Commons
Example of Jpg compression (animation) Storegade 182, Esbjerg, 1
04 Example of Jpg compression (animation) Storegade 182, Esbjerg, 1This image shows a building with extreme digital degradation across the sky and shadows. It is a good example of how low-bitrate encoding creates large, flat color blocks and jagged edges.Kent Madsen · CC BY-SA 4.0 · Wikimedia Commons
Comparison between JPEG, JPEG 2000 and JPEG XR
05 Comparison between JPEG, JPEG 2000 and JPEG XRA night cityscape is compared across three different JPEG standards at similar file sizes. The standard JPEG version shows more noticeable block artifacts in the dark sky compared to the newer compression methods.Original image: Benh LIEU SONGJohn This image: John · GFDL · Wikimedia Commons
JPEG JFIF and 2000 Comparison
06 JPEG JFIF and 2000 ComparisonComparison between uncompressed, JPEG JFIF, and JPEG 2000. The JPEG JFIF version shows noticeable ringing around the edges of the bowl and leaves, and block-based degradation of the floor texture.Shlomital · CC BY-SA 3.0 · Wikimedia Commons
AI illustration: A city skyline shows severe posterization and blocky color banding in the
07 AI illustration: A city skyline shows severe posterization and blocky color banding in theA city skyline shows severe posterization and blocky color banding in the sky. These square-shaped distortions are characteristic of low-bitrate quantization during lossy image compression.Illustration generated for the Atlas (AI)