pingo flags and behavior changes
if you use 0.x and ax versions, beware of those flags which have new behaviors — v1 has lot of significant changes. the goal was to simplify, automate and optimize most of stuff using SIMD implementation, multi-threading of heuristics and faster/new transformers
PNG — lossless
pingo -lossless in.png
see PNG benchmark: web lossless optimization
PNG — lossless
| infile |
id |
s |
outfile |
time |
| 47.84 MB |
a70 |
|
43.19 MB |
17.77s |
| 1.00 |
|
43.19 MB |
2.13s |
| 140.68 MB |
a70 |
|
131.86 MB |
48.93s |
| 1.00 |
|
131.86 MB |
7.26s |
| 658.02 KB |
a70 |
9 |
631.66 KB |
0.85s |
| 1.00 |
|
586.42 KB |
0.44s |
PNG — lossy
pingo in.png
PNG — lossy
| infile |
id |
s |
outfile |
time |
| 70.11 KB |
a70 |
|
29.02 KB |
0.12s |
| 1.00 |
|
28.10 KB |
0.04s |
| 431.34 KB |
a70 |
|
75.73 KB |
0.19s |
| 1.00 |
|
87.14 KB |
0.08s |
| a70 |
9 |
69.89 KB |
0.29s |
| 1.00 |
4 |
69.79 KB |
0.29s |
JPEG — lossless
pingo -lossless in.jpg
JPEG — lossless
| infile |
id |
s |
outfile |
time |
| 11.87 MB |
a70 |
0 |
11.13 MB |
0.55s |
| 1.00 |
1 |
11.13 MB |
0.43s |
| 11.87 MB |
a70 |
1 |
10.63 MB |
1.15s |
| 1.00 |
2 |
10.62 MB |
0.90s |
| 11.87 MB |
a70 |
2 |
10.56 MB |
3.32s |
| 1.00 |
3 |
10.55 MB |
2.59s |
JPEG — lossy
JPEG — lossy (baseline)
| infile |
id |
outfile |
time |
| 11.87 MB |
a70 |
5.61 MB |
1.51s |
| 1.00 |
5.49 MB |
1.06s |
| cmd |
mem |
dssim |
| a70 -jpgtype=0 in.jpg |
503 MB |
0.00071016 |
| 100 -q=92 -s1 in.jpg |
302 MB |
0.00070157 |
JPEG — lossy (progressive)
| infile |
id |
outfile |
time |
| 11.87 MB |
a70 |
5.38 MB |
3.49s |
| 1.00 |
5.38 MB |
1.60s |
| cmd |
mem |
dssim |
| a70 -jpgtype=1 in.jpg |
503 MB |
0.00071016 |
| 100 -q=92 -s2 in.jpg |
303 MB |
0.00070157 |
JPEG — lossy (progressive)
| infile |
id |
outfile |
time |
| 11.87 MB |
a70 |
5.38 MB |
3.50s |
| 1.00 |
5.26 MB |
2.59s |
| cmd |
mem |
dssim |
| a70 -jpgtype=2 in.jpg |
503 MB |
0.00071016 |
| 100 -q=92 -s3 in.jpg |
305 MB |
0.00070157 |
WebP — lossless
pingo -lossless in.webp
WebP — lossless
| infile |
id |
s |
outfile |
time |
| 551.86 KB |
a70 |
|
no savings |
0.63s |
| 1.00 |
|
549.59 KB |
0.39s |
| a70 |
9 |
517.27 KB |
1.39s |
| 1.00 |
4 |
509.69 KB |
0.95s |
| 277.75 KB |
a70 |
|
no savings |
0.29s |
| 1.00 |
|
no savings |
0.18s |
| a70 |
9 |
267.29 KB |
0.64s |
| 1.00 |
4 |
266.06 KB |
0.45s |
| 484.98 KB |
a70 |
|
no savings |
0.72s |
| 1.00 |
|
444.40 KB |
0.43s |
| a70 |
9 |
439.12 KB |
1.47s |
| 1.00 |
4 |
439.18 KB |
0.92s |
| 888.35 KB |
a70 |
|
no savings |
0.77s |
| 1.00 |
|
830.02 KB |
0.47s |
| a70 |
9 |
817.72 KB |
1.75s |
| 1.00 |
4 |
817.72 KB |
1.27s |
WebP — lossy
pingo -webp in.png
WebP — lossy
| infile |
id |
outfile |
time |
| 70.11 KB |
a70 |
25.03 KB |
0.10s |
| 1.00 |
22.22 KB |
0.04s |
| 327.66 KB |
a70 |
74.07 KB |
0.19s |
| 1.00 |
74.16 KB |
0.18s |
| cmd |
mem |
dssim |
| a70 -webp |
39 MB |
0.00029655 |
| 100 -webp |
39 MB |
0.00026109 |
APNG — lossless
pingo -lossless in.png
APNG — lossless
| infile |
id |
s |
outfile |
time |
| 2.03 MB |
a70 |
b |
1.42 MB |
3.34s |
| 1.00 |
4 |
1.41 MB |
2.71s |
| 573.99 KB |
a70 |
b |
190.87 KB |
2.13s |
| 1.00 |
4 |
190.62 KB |
1.68s |
APNG — lossy
pingo in.png
APNG — lossy
| infile |
id |
outfile |
time |
| 427.10 KB |
a70 |
231.58 KB |
1.39s |
| 1.00 |
220.20 KB |
0.34s |
| 2.65 MB |
a70 |
1.41 MB |
2.88s |
| 1.00 |
1.36 MB |
1.26s |
| cmd |
mem |
dssim |
| a70 in.png |
145 MB |
0.00016947 |
| 100 in.png |
143 MB |
0.00032573 |
flags — new behaviors
| flag |
behavior |
(none)
|
automatic compression level and type
changes
- does not perform automatic PNG to JPEG conversion
- does not perform automatic transformations (sRGB, rotation, etc.)
|
-s1 to -s4
|
compression level
changes
- does affect compression level only
- strategies from 1 to 4
|
-lossless
|
enable lossless mode
changes
- would be required for lossless compression
- could not be combined or affect some transformations
- would ignore 16 bit per sample PNG
- if combined with -rotate, rotation would be done only if perfect
|
-quality=N
|
quality factor — would override default heuristics
changes
- less effect regarding the color quantizer
- more balanced
|
-srgb
|
convert image data from ICC profiles
changes
- would not be done automatically
- could not be performed in lossless mode
|
-rotate
|
auto rotate JPEG according to the orientation flag
changes
- would not be done automatically
- if combined with -lossless, rotation would be done only if perfect
|
-resize
|
resize image with adaptive transforms
changes
- use a faster, ready-to-go library instead of the precedent implementation
- improved quality/size with pre/post processing
|
error
error:
-----------------------------------------------------------------
incorrect command-line or processing
-----------------------------------------------------------------
what this message means
- check the command-line: if it seems ok, perhaps the combination is not allowed or implemented
- if -lossless was used, check this
patches
1.23.9 — 26/06/2024
improved PNG and WebP lossless further (palette)
improved alpha-p palette optimization
added already optimized palette from PNG
heuristic for PNG > WebP lossless
changed already optimized palette from PNG
(1.23.9)
fixed -s1 for mt-palette
fixed JPEG q heuristic for transforms
fixed near gray
1.23 — 21/04/2024
improved PNG lossless further (palette)
improved WebP lossless (palette)
1.22 — 18/04/2024
fixed & improved PNG lossless (palette)
1.21 — 15/04/2024
added lossy & keep alpha
fixed WebP lossy does not keep alpha with -noalpha
changed % considering processable files only
various code optimization
1.20 — 20/03/2024
improved grayscale+alpha lossless filtering
changed behavior of -hq=1 on flat
improved lossy on near-grayscale images
fixed critical-typo when grayalpha in fast lossless
fixed & improved fast lossless
fixed compression regression from c6
fixed crash
1.19 — 07/03/2024
small improvements for palette sorting (PNG/WebP)
fixed & improved near-lossless (-hq) (PNG/WebP)
1.18 — 27/02/2024
improved heuristic in auto (PNG/JPEG)
improved -grayline/scale
fixed -hq behavior
various code optimization
1.17 — 13/01/2024
changed grayscale formula + fixes
1.16 — 15/11/2023
fixed and improved auto with palette as input (PNG/WebP)
1.15 — 30/10/2023
fixed palette stuff 3 (PNG)
1.14 — 26/10/2023
fixed palette stuff 2 (PNG)
1.13 — 25/10/2023
fixed palette stuff (PNG)
1.12 — 22/09/2023
reintroduced near stuff -hq=N (PNG/JPEG/WebP)
improved lossless content-heuristic (PNG)
1.11 — 23/08/2023
improved -s0 lossless for paletted (PNG)
1.10 — 22/08/2023
fixed handling of invalid APNG structure
improved conversion when using -grayscale and auto (APNG/PNG)
improved auto decisions (APNG/PNG/WebP)
1.09 — 01/08/2023
fixed incorrect APNG optimization (size)
1.08 — 25/07/2023
fixed filter in auto (WebP)
1.07 — 25/07/2023
fixed grayscale and lossy (JPEG/WebP)
1.06 — 08/07/2023
improved heuristics for truecolor even more (WebP)
1.05 — 07/07/2023
fixed rotation and lossy (JPEG/WebP)
fixed some heuristics & improvements for truecolor stuff (WebP)
improved default efficiency for lossless WebP (-s0)
1.04 — 06/07/2023
improved auto decisions (PNG/WebP)
1.03 — 23/06/2023
improved auto decisions (PNG/WebP)
1.02 — 19/06/2023
fixed metadata (copy)
1.01 — 19/06/2023
fixed metadata handler -nostrip
1.00 — 14/06/2023
initial 1.x release
