圖片換背景

批次預設匯出原尺寸透明 PNG，套用商品圖範本後使用範本設定。

AI 去背免費使用。每成功處理 3 次，需選擇一個分享平台關閉彈窗後繼續。失敗或取消不計次。

No. Classic works without AI. Remove a simple background, use the magic wand or draw a lasso. AI cutout is optional for complex subjects.

Use a solid or nearly solid background with a subject of a different color. Gradients, shadows, subjects touching the border and matching colors may need a magic wand or lasso. An uncertain background is left unchanged.

你的圖片留在本機，分享使用預備的 Cutout 宣傳圖與工具連結，不會包含你自己的圖片。

JPG, JPEG, PNG and WebP up to 25 MiB. Images must also fit within 24 million pixels and 16,384 pixels on either side. Invalid replacements leave your current image in place.

完成去背後選擇「原背景模糊」，即可調整強度，無需再次執行 AI；0 表示顯示原背景。PNG 和 JPG 包含模糊效果，遮罩 PNG 維持原樣。此功能使用目前原圖，不會重建被遮擋或已移除的景物。

The clicked color becomes transparent immediately. Contiguous limits removal to connected pixels. Turn it off to include separated areas of the same color. Adjust Tolerance to recompute your current clicks without losing earlier brush or lasso edits.

Edge pixels can mix foreground and background colors. Slightly increase Tolerance, zoom in and use the brush, or add a little Feather. Results depend on the image; Classic does not recognize hair or objects.

Use Keep clicked area instead or keep a closed lasso selection. Undo and Redo restore completed edits. Restore paints the original image back. Reset edits restores the starting mask, either the original or the last successful AI result. A successful AI run starts new history, limited to 48 MiB or 40 steps.

首次使用需要連網，處理可能較慢。後續可重用瀏覽器已儲存的檔案，圖片始終留在本機。

After AI finishes, choose Keep subject or Keep background under AI result. Switching uses the existing result and does not cost another use. Removed areas become transparent; hidden scenery is not reconstructed.

Yes. Use the lasso, polygon lasso, magic wand, erase, restore and feather after AI finishes. Keep selection only keeps pixels that remain; use Restore to bring back an area AI removed. The lasso does not guide AI recognition. Manual edits and repeated exports do not cost AI uses.

選擇分享平台即可關閉提醒並開啟發文介面，依平台能力帶入文案或連結預覽，是否發布由你決定。複製文案或下載配圖不會關閉提醒。

For people, pets and objects. Requires WebGPU with float16.

PNG keeps transparency with Transparent selected. JPG uses a white background when Transparent is selected. The checkerboard is only a preview and never goes into the exported file.

用 Classic 或 AI 移除背景，修整商品邊緣或人像髮絲，再選擇「透明」並下載 PNG。JPG 無法保留透明背景。

Choose a solid color or upload a local background image. Background images fill the output without changing the subject proportions. Mask PNG saves the final grayscale alpha: white keeps, black removes, and gray is partly transparent.

預設使用薄荷色，也可選擇自訂顏色或上傳背景照片。照片填滿畫布；調整水平和垂直位置可選擇裁切範圍。

展開「描邊與投影」即可分別啟用效果。可設定描邊顏色、寬度，以及投影柔和度、不透明度與位移。效果在本機處理，不會再次執行 AI。

展開「畫布排版」，開啟「將主體排版至畫布」，設定尺寸與留白。100% 適配可見像素，降低縮放可增加空白。使用「移動主體」拖曳或按方向鍵定位。替換圖片時保留排版設定。

匯出使用已完成的遮罩與背景，預設保持原尺寸；開啟排版後使用畫布尺寸。對比與遮罩使用相同位置。縮放檢視只影響畫面，請等待處理完成後下載。