gimp-inkscape

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GIMP + Inkscape + ImageMagick Image Skill

GIMP + Inkscape + ImageMagick 图像处理技能

Local image creation and manipulation. No API calls, no cost, no internet required.

本地图像创建与处理。无需调用API，无成本，无需联网。

Decision Guide — Pick the Right Tool

决策指南——选择合适的工具

Task	Use	Notes
Simple resize	ImageMagick	10× faster than GIMP, one liner
Batch resize folder	ImageMagick mogrify	Purpose-built for batch
SVG → PNG	Inkscape	Vector quality, exact dimensions
Text overlay / watermark	ImageMagick	Reliable; GIMP Script-Fu text is flaky
Complex typography	Inkscape SVG	Pixel-perfect vector text
Format conversion	ImageMagick	One liner, handles WebP too
Compositing / layers	GIMP	Full layer control
Color correction	GIMP	Curves/levels more precise than IM
PNG compression	OptiPNG	Lossless, 20–50% savings
JPEG compression	jpegoptim	Lossless recompression
Metadata read/strip	ExifTool	The industry standard
GIF / animation	FFmpeg	Nothing else handles this
PDF → image	pdftoppm	Clean, DPI-controllable
Photo editing (advanced)	GIMP	Healing, clone stamp, curves

任务	使用工具	说明
简单调整大小	ImageMagick	比GIMP快10倍，单行命令即可完成
批量调整文件夹内图片大小	ImageMagick mogrify	专为批量处理设计
SVG → PNG	Inkscape	矢量画质，精确尺寸
文本叠加 / 水印	ImageMagick	可靠；GIMP Script-Fu文本功能不稳定
复杂排版	Inkscape SVG	像素级精准的矢量文本
格式转换	ImageMagick	单行命令，支持WebP格式
图像合成 / 图层处理	GIMP	完整的图层控制
色彩校正	GIMP	曲线/色阶比ImageMagick更精准
PNG压缩	OptiPNG	无损压缩，可节省20–50%空间
JPEG压缩	jpegoptim	无损重新压缩
元数据读取/清除	ExifTool	行业标准工具
GIF / 动画制作	FFmpeg	其他工具无法替代
PDF → 图像	pdftoppm	输出清晰，可控制DPI
高级照片编辑	GIMP	修复、仿制图章、曲线调整等功能

Optional installs for two specific tasks

两项特定任务的可选安装

Background removal:

pip install rembg

then

rembg i input.png output.png

AI upscaling: Real-ESRGAN — significant quality boost over interpolation upscaling

背景移除：

pip install rembg

然后执行

rembg i input.png output.png

AI图像放大：Real-ESRGAN — 比插值放大的画质提升显著

ImageMagick — CLI Reference

ImageMagick — CLI 参考

Format conversion

格式转换

bash

convert input.png output.jpg
convert input.jpg output.webp
convert input.png -quality 92 output.jpg

bash

convert input.png output.jpg
convert input.jpg output.webp
convert input.png -quality 92 output.jpg

Resize

调整大小

bash

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Exact dimensions (may distort)

精确尺寸（可能会变形）

convert input.jpg -resize 1200x630! output.jpg

Fit within box (preserves aspect ratio)

适配指定尺寸框（保持宽高比）

convert input.jpg -resize 1200x630 output.jpg

Fill and crop to exact dimensions (centered)

填充并裁剪至精确尺寸（居中）

convert input.jpg -resize 1200x630^ -gravity Center -extent 1200x630 output.jpg

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convert input.jpg -resize 1200x630^ -gravity Center -extent 1200x630 output.jpg

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Batch resize entire folder (mogrify)

批量调整整个文件夹内图片大小（mogrify）

bash

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Resize all JPEGs in place

原地调整所有JPEG图片大小

mogrify -resize 800x600 /path/to/folder/*.jpg

Resize and output to a different folder

调整大小并输出到另一个文件夹

mogrify -resize 800x600 -path /output/folder /input/folder/*.jpg

Convert all PNGs to WebP

将所有PNG转换为WebP格式

mogrify -format webp /path/to/folder/*.png

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mogrify -format webp /path/to/folder/*.png

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Text overlay / watermark

文本叠加 / 水印

bash

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Simple text in bottom-right corner

右下角添加简单文本

convert input.jpg
-font DejaVu-Sans -pointsize 36
-fill white -annotate +20+40 "© ReshareAI"
output.jpg

Centered text with shadow

居中带阴影文本

convert input.jpg
-font DejaVu-Sans-Bold -pointsize 72
-fill black -annotate +202+302 "Headline"
-fill white -annotate +200+300 "Headline"
output.jpg

Semi-transparent watermark tiled across image

半透明水印平铺整个图像

convert input.jpg
-font DejaVu-Sans -pointsize 48 -fill "rgba(255,255,255,0.3)"
-gravity Center -annotate 30x30+0+0 "WATERMARK"
output.jpg

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convert input.jpg
-font DejaVu-Sans -pointsize 48 -fill "rgba(255,255,255,0.3)"
-gravity Center -annotate 30x30+0+0 "WATERMARK"
output.jpg

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Composite: place logo/image on top

图像合成：将徽标/图片叠加在上方

bash

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Place logo.png bottom-right with 10px padding

将logo.png放在右下角，保留10px边距

convert base.jpg
logo.png
-gravity SouthEast -geometry +10+10
-composite output.jpg

Place with opacity

带透明度的叠加

convert base.jpg
( logo.png -alpha set -channel Alpha -evaluate multiply 0.5 )
-gravity Center -composite output.jpg

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convert base.jpg
( logo.png -alpha set -channel Alpha -evaluate multiply 0.5 )
-gravity Center -composite output.jpg

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Color adjustments

色彩调整

bash

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Brightness / contrast

亮度 / 对比度

convert input.jpg -brightness-contrast 10x20 output.jpg

Saturation

饱和度

convert input.jpg -modulate 100,130,100 output.jpg

Grayscale

灰度化

convert input.jpg -colorspace Gray output.jpg

Sharpen

锐化

convert input.jpg -unsharp 0x1 output.jpg

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convert input.jpg -unsharp 0x1 output.jpg

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Get image info

获取图像信息

bash

identify input.jpg
identify -verbose input.jpg | grep -E "Geometry|Colorspace|Format|filesize"

bash

identify input.jpg
identify -verbose input.jpg | grep -E "Geometry|Colorspace|Format|filesize"

ImageMagick — WebP

ImageMagick — WebP 处理

ImageMagick has the WebP delegate built in (confirmed on this system):

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当前系统已内置ImageMagick的WebP处理插件：

bash

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PNG/JPEG → WebP

convert input.png -quality 85 output.webp

WebP → PNG

convert input.webp output.png

Batch convert all JPEGs to WebP

批量将所有JPEG转换为WebP

mogrify -format webp -quality 85 /path/to/folder/*.jpg

---

mogrify -format webp -quality 85 /path/to/folder/*.jpg

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FFmpeg — GIF & Animation

FFmpeg — GIF & 动画制作

Video → GIF

视频 → GIF

bash

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Basic

基础转换

ffmpeg -i input.mp4 -vf "fps=10,scale=800:-1" output.gif

High quality (uses palette)

高质量转换（使用调色板）

ffmpeg -i input.mp4 -vf "fps=12,scale=800:-1:flags=lanczos,palettegen" palette.png ffmpeg -i input.mp4 -i palette.png -vf "fps=12,scale=800:-1:flags=lanczos,paletteuse" output.gif

Clip a section (start 5s, duration 3s)

截取片段（从第5秒开始，时长3秒）

ffmpeg -ss 5 -t 3 -i input.mp4 -vf "fps=10,scale=600:-1" output.gif

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ffmpeg -ss 5 -t 3 -i input.mp4 -vf "fps=10,scale=600:-1" output.gif

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Extract frames from video

从视频提取帧

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Extract every frame as PNG

提取所有帧为PNG

ffmpeg -i input.mp4 /output/frame_%04d.png

Extract 1 frame per second

每秒提取1帧

ffmpeg -i input.mp4 -vf fps=1 /output/frame_%04d.png

Extract a single frame at timestamp

在指定时间戳提取单帧

ffmpeg -ss 00:00:05 -i input.mp4 -frames:v 1 output.png

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ffmpeg -ss 00:00:05 -i input.mp4 -frames:v 1 output.png

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Image sequence → video or GIF

图像序列 → 视频或GIF

bash

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Frames → MP4

帧序列 → MP4

ffmpeg -framerate 24 -i frame_%04d.png -c:v libx264 output.mp4

Frames → GIF

帧序列 → GIF

ffmpeg -framerate 10 -i frame_%04d.png output.gif

---

ffmpeg -framerate 10 -i frame_%04d.png output.gif

---

ExifTool — Metadata

ExifTool — 元数据处理

Read metadata

读取元数据

bash

exiftool input.jpg
exiftool -s input.jpg                          # short tag names
exiftool -ImageSize -DateTimeOriginal input.jpg  # specific fields

bash

exiftool input.jpg
exiftool -s input.jpg                          # 短标签名称
exiftool -ImageSize -DateTimeOriginal input.jpg  # 指定字段

Strip all metadata (privacy / pre-publish)

清除所有元数据（隐私保护 / 发布前处理）

bash

exiftool -all= input.jpg                       # strips in place (saves backup)
exiftool -all= -overwrite_original input.jpg   # no backup
exiftool -all= -overwrite_original /folder/*.jpg  # batch strip

bash

exiftool -all= input.jpg                       # 原地清除（保存备份）
exiftool -all= -overwrite_original input.jpg   # 不保存备份
exiftool -all= -overwrite_original /folder/*.jpg  # 批量清除

Copy EXIF from one file to another

复制元数据到另一个文件

bash

exiftool -TagsFromFile source.jpg target.jpg

bash

exiftool -TagsFromFile source.jpg target.jpg

Write metadata

写入元数据

bash

exiftool -Artist="Ramon" -Copyright="© 2026 ReshareAI" input.jpg
exiftool -all= -overwrite_original -Artist="Ramon" /folder/*.jpg

bash

exiftool -Artist="Ramon" -Copyright="© 2026 ReshareAI" input.jpg
exiftool -all= -overwrite_original -Artist="Ramon" /folder/*.jpg

OptiPNG — Lossless PNG Compression

OptiPNG — 无损PNG压缩

bash

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Optimize (overwrites in place, creates backup .bak)

优化（原地覆盖，创建.bak备份）

optipng input.png

No backup

不创建备份

optipng -o 7 input.png # -o 7 is max compression (slower)

optipng -o 7 input.png # -o 7为最高压缩比（速度较慢）

Output to new file

输出到新文件

optipng -out output.png input.png

Batch

批量处理

optipng /path/to/folder/*.png

Check savings without writing

模拟压缩查看节省空间情况，不实际写入

optipng -simulate input.png


Typical savings: 20–50% file size reduction with zero quality loss.

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optipng -simulate input.png


通常可节省20–50%的文件大小，且画质无损失。

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jpegoptim — Lossless JPEG Compression

jpegoptim — 无损JPEG压缩

bash

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Lossless optimization (in place)

无损优化（原地处理）

jpegoptim input.jpg

With target file size

指定目标文件大小

jpegoptim --size=200k input.jpg

Strip all metadata + optimize

清除所有元数据并优化

jpegoptim --strip-all input.jpg

Batch (folder)

批量处理文件夹

jpegoptim /path/to/folder/*.jpg

Batch with max quality floor

批量处理并设置最低画质

jpegoptim --max=90 /path/to/folder/*.jpg

---

jpegoptim --max=90 /path/to/folder/*.jpg

---

Poppler — PDF → Image

Poppler — PDF → 图像

bash

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All pages → PNG at 150 DPI (output: file-000001.png, file-000002.png ...)

所有页面转换为150 DPI的PNG（输出：file-000001.png, file-000002.png ...）

pdftoppm -r 150 -png input.pdf /output/page

All pages → JPEG

所有页面转换为JPEG

pdftoppm -r 150 -jpeg input.pdf /output/page

Single page (page 1 only)

单页转换（仅第1页）

pdftoppm -r 300 -png -f 1 -l 1 input.pdf /output/page

High DPI for print-quality extraction

高DPI提取（印刷级画质）

pdftoppm -r 300 -png input.pdf /output/page

---

pdftoppm -r 300 -png input.pdf /output/page

---

Inkscape — CLI Reference

Inkscape — CLI 参考

SVG → PNG export (exact dimensions)

SVG → PNG导出（精确尺寸）

bash

inkscape input.svg \
  --export-type=png \
  --export-filename=output.png \
  --export-width=1200 \
  --export-height=630

bash

inkscape input.svg \
  --export-type=png \
  --export-filename=output.png \
  --export-width=1200 \
  --export-height=630

Export specific layer

导出指定图层

bash

inkscape input.svg \
  --export-type=png \
  --export-filename=output.png \
  --export-id=layer1 \
  --export-id-only

bash

inkscape input.svg \
  --export-type=png \
  --export-filename=output.png \
  --export-id=layer1 \
  --export-id-only

SVG → PDF

bash

inkscape input.svg --export-type=pdf --export-filename=output.pdf

bash

inkscape input.svg --export-type=pdf --export-filename=output.pdf

Create SVG from scratch (write file, then export)

从头创建SVG（先写入文件，再导出）

Write a

.svg

file using the Write tool, then export with Inkscape. SVG template:

xml

<?xml version="1.0" encoding="UTF-8"?>
<svg width="1200" height="630" viewBox="0 0 1200 630"
     xmlns="http://www.w3.org/2000/svg">

  <defs>
    <linearGradient id="bg" x1="0%" y1="0%" x2="100%" y2="100%">
      <stop offset="0%" style="stop-color:#4C1D95"/>
      <stop offset="100%" style="stop-color:#1E1B4B"/>
    </linearGradient>
  </defs>

  <rect width="1200" height="630" fill="url(#bg)"/>

  <!-- Text renders perfectly — no hallucination like GIMP/FLUX -->
  <text x="100" y="280"
        font-family="Inter, Arial, sans-serif"
        font-size="96" font-weight="700"
        fill="white">BrandName</text>

  <text x="100" y="360"
        font-family="Inter, Arial, sans-serif"
        font-size="32" fill="rgba(255,255,255,0.7)">Tagline goes here</text>

</svg>

使用写入工具创建

.svg

文件，然后用Inkscape导出。SVG模板：

xml

<?xml version="1.0" encoding="UTF-8"?>
<svg width="1200" height="630" viewBox="0 0 1200 630"
     xmlns="http://www.w3.org/2000/svg">

  <defs>
    <linearGradient id="bg" x1="0%" y1="0%" x2="100%" y2="100%">
      <stop offset="0%" style="stop-color:#4C1D95"/>
      <stop offset="100%" style="stop-color:#1E1B4B"/>
    </linearGradient>
  </defs>

  <rect width="1200" height="630" fill="url(#bg)"/>

  <!-- 文本渲染完美 — 不会像GIMP/FLUX那样出现错误 -->
  <text x="100" y="280"
        font-family="Inter, Arial, sans-serif"
        font-size="96" font-weight="700"
        fill="white">BrandName</text>

  <text x="100" y="360"
        font-family="Inter, Arial, sans-serif"
        font-size="32" fill="rgba(255,255,255,0.7)">Tagline goes here</text>

</svg>

GIMP — Script-Fu Batch Reference

GIMP — Script-Fu 批量处理参考

Use GIMP for: compositing, color correction, photo editing, alpha channel work. For simple tasks prefer ImageMagick.

GIMP适用于：图像合成、色彩校正、照片编辑、Alpha通道处理。简单任务优先选择ImageMagick。

Resize to exact dimensions

调整至精确尺寸

bash

gimp --no-interface --batch '(let* (
  (image (car (gimp-file-load RUN-NONINTERACTIVE "/path/input.png" "input.png")))
  (drawable (car (gimp-image-get-active-drawable image))))
  (gimp-image-scale-full image 1200 630 INTERPOLATION-LINEAR)
  (file-png-save RUN-NONINTERACTIVE image (car (gimp-image-get-active-drawable image))
    "/path/output.png" "output.png" 0 9 1 1 1 1 1))
(gimp-quit 0)'

bash

gimp --no-interface --batch '(let* (
  (image (car (gimp-file-load RUN-NONINTERACTIVE "/path/input.png" "input.png")))
  (drawable (car (gimp-image-get-active-drawable image))))
  (gimp-image-scale-full image 1200 630 INTERPOLATION-LINEAR)
  (file-png-save RUN-NONINTERACTIVE image (car (gimp-image-get-active-drawable image))
    "/path/output.png" "output.png" 0 9 1 1 1 1 1))
(gimp-quit 0)'

Scale then crop (fill mode — covers full canvas)

缩放后裁剪（填充模式 — 覆盖整个画布）

bash

gimp --no-interface --batch '(let* (
  (image (car (gimp-file-load RUN-NONINTERACTIVE "/path/input.jpg" "input.jpg")))
  (w (car (gimp-image-width image)))
  (h (car (gimp-image-height image)))
  (target-w 1200) (target-h 630)
  (scale (max (/ target-w w) (/ target-h h)))
  (new-w (inexact->exact (round (* w scale))))
  (new-h (inexact->exact (round (* h scale)))))
  (gimp-image-scale-full image new-w new-h INTERPOLATION-LINEAR)
  (gimp-image-crop image target-w target-h
    (/ (- new-w target-w) 2) (/ (- new-h target-h) 2))
  (file-png-save RUN-NONINTERACTIVE image (car (gimp-image-get-active-drawable image))
    "/path/output.png" "output.png" 0 9 1 1 1 1 1))
(gimp-quit 0)'

bash

gimp --no-interface --batch '(let* (
  (image (car (gimp-file-load RUN-NONINTERACTIVE "/path/input.jpg" "input.jpg")))
  (w (car (gimp-image-width image)))
  (h (car (gimp-image-height image)))
  (target-w 1200) (target-h 630)
  (scale (max (/ target-w w) (/ target-h h)))
  (new-w (inexact->exact (round (* w scale))))
  (new-h (inexact->exact (round (* h scale)))))
  (gimp-image-scale-full image new-w new-h INTERPOLATION-LINEAR)
  (gimp-image-crop image target-w target-h
    (/ (- new-w target-w) 2) (/ (- new-h target-h) 2))
  (file-png-save RUN-NONINTERACTIVE image (car (gimp-image-get-active-drawable image))
    "/path/output.png" "output.png" 0 9 1 1 1 1 1))
(gimp-quit 0)'

Add semi-transparent colour overlay

添加半透明颜色叠加层

bash

gimp --no-interface --batch '(let* (
  (image (car (gimp-file-load RUN-NONINTERACTIVE "/path/input.png" "input.png")))
  (overlay (car (gimp-layer-new image
    (car (gimp-image-width image))
    (car (gimp-image-height image))
    RGBA-IMAGE "overlay" 60 LAYER-MODE-NORMAL))))
  (gimp-image-insert-layer image overlay 0 -1)
  (gimp-context-set-foreground (list 0 0 0))
  (gimp-edit-fill overlay FILL-FOREGROUND)
  (file-png-save RUN-NONINTERACTIVE image (car (gimp-image-flatten image))
    "/path/output.png" "output.png" 0 9 1 1 1 1 1))
(gimp-quit 0)'

bash

gimp --no-interface --batch '(let* (
  (image (car (gimp-file-load RUN-NONINTERACTIVE "/path/input.png" "input.png")))
  (overlay (car (gimp-layer-new image
    (car (gimp-image-width image))
    (car (gimp-image-height image))
    RGBA-IMAGE "overlay" 60 LAYER-MODE-NORMAL))))
  (gimp-image-insert-layer image overlay 0 -1)
  (gimp-context-set-foreground (list 0 0 0))
  (gimp-edit-fill overlay FILL-FOREGROUND)
  (file-png-save RUN-NONINTERACTIVE image (car (gimp-image-flatten image))
    "/path/output.png" "output.png" 0 9 1 1 1 1 1))
(gimp-quit 0)'

Composite: place image B on top of image A

图像合成：将图像B叠加在图像A上方

bash

gimp --no-interface --batch '(let* (
  (base (car (gimp-file-load RUN-NONINTERACTIVE "/path/base.png" "base.png")))
  (overlay-img (car (gimp-file-load RUN-NONINTERACTIVE "/path/overlay.png" "overlay.png")))
  (overlay-layer (car (gimp-layer-new-from-drawable
    (car (gimp-image-get-active-drawable overlay-img)) base))))
  (gimp-image-insert-layer base overlay-layer 0 -1)
  (gimp-layer-set-offsets overlay-layer 50 50)
  (file-png-save RUN-NONINTERACTIVE base (car (gimp-image-flatten base))
    "/path/output.png" "output.png" 0 9 1 1 1 1 1))
(gimp-quit 0)'

bash

gimp --no-interface --batch '(let* (
  (base (car (gimp-file-load RUN-NONINTERACTIVE "/path/base.png" "base.png")))
  (overlay-img (car (gimp-file-load RUN-NONINTERACTIVE "/path/overlay.png" "overlay.png")))
  (overlay-layer (car (gimp-layer-new-from-drawable
    (car (gimp-image-get-active-drawable overlay-img)) base))))
  (gimp-image-insert-layer base overlay-layer 0 -1)
  (gimp-layer-set-offsets overlay-layer 50 50)
  (file-png-save RUN-NONINTERACTIVE base (car (gimp-image-flatten base))
    "/path/output.png" "output.png" 0 9 1 1 1 1 1))
(gimp-quit 0)'

Brightness / contrast / saturation

亮度 / 对比度 / 饱和度调整

bash

gimp --no-interface --batch '(let* (
  (image (car (gimp-file-load RUN-NONINTERACTIVE "/path/input.jpg" "input.jpg")))
  (drawable (car (gimp-image-get-active-drawable image))))
  (gimp-brightness-contrast drawable 20 30)
  (gimp-drawable-hue-saturation drawable HUE-RANGE-ALL 0 0 25 0)
  (file-jpeg-save RUN-NONINTERACTIVE image drawable
    "/path/output.jpg" "output.jpg" 0.92 0 0 0 "" 0 1 0 2 0))
(gimp-quit 0)'

bash

gimp --no-interface --batch '(let* (
  (image (car (gimp-file-load RUN-NONINTERACTIVE "/path/input.jpg" "input.jpg")))
  (drawable (car (gimp-image-get-active-drawable image))))
  (gimp-brightness-contrast drawable 20 30)
  (gimp-drawable-hue-saturation drawable HUE-RANGE-ALL 0 0 25 0)
  (file-jpeg-save RUN-NONINTERACTIVE image drawable
    "/path/output.jpg" "output.jpg" 0.92 0 0 0 "" 0 1 0 2 0))
(gimp-quit 0)'

Recommended Workflow: OG Image / Social Banner

推荐工作流：OG图像 / 社交横幅制作

Write an SVG file (exact layout, text, colors) using the Write tool
Export with Inkscape at target dimensions — text is pixel-perfect
Optimize with OptiPNG before publishing

bash

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编写SVG文件（精确布局、文本、颜色），使用写入工具完成
导出用Inkscape导出至目标尺寸 — 文本像素级精准
优化发布前用OptiPNG优化

bash

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Step 1: write /tmp/card.svg

步骤1：写入/tmp/card.svg

Step 2: export

步骤2：导出

inkscape /tmp/card.svg
--export-type=png
--export-filename=/output/og.png
--export-width=1200
--export-height=630

Step 3: optimize

步骤3：优化

optipng -o 5 /output/og.png

---

optipng -o 5 /output/og.png

---

Tips

小贴士

Text accuracy: Inkscape SVG > ImageMagick
```
-annotate
```
> GIMP Script-Fu (avoid for text)
Speed hierarchy: ImageMagick > GIMP for simple ops; GIMP wins for complex compositing
GIMP
--no-interface
— always end scripts with
```
(gimp-quit 0)
```
Script-Fu paths must be absolute — no
```
~/
```
shortcuts
GIMP opacity is 0–100 (integer), not 0.0–1.0

Inkscape 1.1 uses

--export-type

--export-filename

(older versions used

--export-png

)

ImageMagick
!
suffix on geometry forces exact dimensions ignoring aspect ratio (
```
1200x630!
```
)

文本准确性：Inkscape SVG > ImageMagick
```
-annotate
```
> GIMP Script-Fu（避免用GIMP处理文本）
速度优先级：简单操作ImageMagick比GIMP快；复杂合成GIMP更胜一筹
GIMP
--no-interface
— 脚本末尾必须添加
```
(gimp-quit 0)
```
Script-Fu路径必须是绝对路径 — 不支持
```
~/
```
快捷方式
GIMP透明度范围是0–100（整数），而非0.0–1.0

Inkscape 1.1使用

--export-type

--export-filename

（旧版本使用

--export-png

）

ImageMagick尺寸参数后的
!
后缀强制使用精确尺寸，忽略宽高比（如
```
1200x630!
```
）