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Home Backend Development PHP Tutorial 用戶上傳的圖片大小不一,怎么展示同一個規(guī)格

用戶上傳的圖片大小不一,怎么展示同一個規(guī)格

Jun 13, 2016 pm 12:08 PM
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用戶上傳的圖片大小不一,如何展示同一個規(guī)格?
如?淘寶C端客戶上傳各種圖片大小的寶貝。分辨率都不一樣。
這里的圖片主要是商品的主圖,主要展示圖,不是商品詳情頁的圖片。
最后如何展示到一個效果,而且比較高清晰。

1.生成?生成縮略圖,采用原圖等比例縮放,但是因?yàn)樯蟼鞔笮〔灰坏膱D片,最后呈現(xiàn)出來的縮略圖也還是大小不一,看起來比較凌亂。XX

2.居中裁剪,用左上角剪裁;?這種方案都會有圖片被剪掉,很不爽。XX

3.固定大?。嚎隙〞冃危隙ú粫?。XX

4.縮放填充是我目前用的一個方案,空白很多,但是因?yàn)檎f不清用戶上傳的圖片大小規(guī)格,空白不一,呈現(xiàn)出來的還是比較凌亂。

so?有個方案就是指定用戶上傳多大的圖片。但是我們客戶比較小白,不是淘寶賣家。雖說這個方案可行,但不會強(qiáng)制上傳一定大小的圖片。我們?nèi)匀惶骄?用戶上傳的圖片大小不一的情況下。如何處理。

想到一個辦法:用戶上傳之后,調(diào)用類似頭像剪輯,用戶可以簡單地框出商品本身。我限制這個框體的大小。然后再上傳。?這樣不會有空白,大小也一致。

求大家說一下有經(jīng)驗(yàn)的處理辦法,謝謝。

還有一個問題,例如?七牛?又拍?OSS等,上傳圖片過去,他們只保存處理后的圖片還是保存原圖,你可以以任何大小的形式調(diào)用?謝謝
------解決思路----------------------
1.生成?生成縮略圖
這種不就可以嗎

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