# img-compression-check

> Check image is compressed.

Latest version **0.1.4** (published 2017-11-29) · ISC license · 0 weekly downloads

## Install

```sh
npm install img-compression-check
pnpm add img-compression-check
yarn add img-compression-check
bun add img-compression-check
```

Provides the command `icc`.

## Health

**Score 15/100 (F)** — status: abandoned.

Positive: no vulnerabilities.

Warnings: low downloads; no types; no esm support; pre 1.0.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 0.1.4 |
| Published | 2017-11-29 |
| First published | 2017-11-29 |
| Weekly downloads | 0 |
| License | ISC |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 5 |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Maintainers | gxy01 |
| Keywords | img, compression, pngquant |

## Links

- npm: https://www.npmjs.com/package/img-compression-check
- npm.io page: https://npm.io/package/img-compression-check

## Dependencies (5)

- [prompt](https://npm.io/package/prompt.md) ^1.0.0
- [imagemin](https://npm.io/package/imagemin.md) ^5.3.1
- [commander](https://npm.io/package/commander.md) ^2.11.0
- [imagemin-jpegtran](https://npm.io/package/imagemin-jpegtran.md) ^5.0.2
- [imagemin-pngquant](https://npm.io/package/imagemin-pngquant.md) ^5.0.1

## Alternatives

- [lodash.startswith](https://npm.io/package/lodash.startswith.md) — 769.7K weekly downloads
- [@tarojs/service](https://npm.io/package/@tarojs/service.md) — 33.9K weekly downloads
- [io.extendreality.tilia.indicators.spatialtargets.unity](https://npm.io/package/io.extendreality.tilia.indicators.spatialtargets.unity.md) — 131 weekly downloads
- [@rtarojs/taro](https://npm.io/package/@rtarojs/taro.md) — 90 weekly downloads
- [node-branch-io](https://npm.io/package/node-branch-io.md) — 50 weekly downloads

## Recent versions

- 0.1.4 (latest) — 2017-11-29
- 0.1.2 — 2017-11-29
- 0.1.1 — 2017-11-29
- 0.1.0 — 2017-11-29

## README

# img-compression-check

图片压缩检查器。

## 背景

在我们的工程中，图片压缩是手动完成的。因为经过较大量的比较发现，图片压缩较好的是[tinypng](https://tinypng.com/)。但是tinypng免费版本是有次数限制的。所以基本上都是手动压缩。
然而手动意味着不可靠。所以需要我们检测一个图片是否被压缩过。

## 方法

这并不是一个高明的方法。
目前采用的方法很简单：
把图片用pngquant压缩一边，然后计算压缩率。一般tinypng和pngquant压缩率都是60到70.通过筛选压缩率，找出可能没有使用tinypng压缩的图片。

我想这里应该有更好的方法。求告知。

## 安装

```bash
npm i img-compression-check -g
```

## 使用

```bash
icc <image path> [rate]
```

---
_Source: https://npm.io/package/img-compression-check · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._