Hard cutouts
Removing Backgrounds from Glass, Bottles and Transparent Products
Glassware, perfume bottles, clear cosmetics packaging, drinks and acrylic stands are the products where one-click background removal fails most visibly. The background shows through the product, so removing it removes part of the product's look as well.
Why transparent products are hard
- See-through regions: the old background is visible inside the glass; a hard mask either keeps it or punches a hole.
- Refraction: edges bend what is behind them, which is what makes glass read as glass.
- Specular highlights: bright edge lines and reflections are often mistaken for background and removed.
- Liquids: the liquid's colour depends on what is behind it.
Shoot to make the edit easy
- Shoot on a plain white or light grey background, not a busy one — whatever is behind the glass ends up inside it.
- Use two softboxes or strip lights at the sides to create clean edge highlights.
- Keep reflections of the room out of the glass with white cards.
Edit workflow
- Run background removal and inspect the alpha: the glass body should be semi-transparent, not fully opaque or fully cut.
- If the tool cut holes or kept grey patches, regenerate the glass interior on white with a masked edit on inpaint:
Inside the masked glass area, show the bottle as photographed on a pure white background: clear glass, subtle grey refraction at the edges, bright vertical highlights on both sides. Keep the label, cap and liquid colour exactly unchanged.
- For a new scene, generate it on product relighting and ask for refraction of the new background through the glass, plus a soft, slightly transparent shadow.
- Check the edges at 200%: a thin dark outline is a sign of a leftover fringe.
Cost
A transparent product usually needs one cutout plus one or two masked passes: $0.13 for the cutout and $0.032 per Qwen pass at list price.
よくある質問
Why does background removal ruin glass products?
Because the background is visible through the glass. A hard mask either keeps the old background inside the product or cuts holes in it.
How do I keep a glass bottle looking like glass on white?
Preserve the edge highlights and a subtle grey refraction at the edges, and add a soft transparent shadow. Regenerate the interior on white with a masked edit if needed.
Does Amazon allow reflections under glass products?
A soft, natural shadow is generally fine on the main image; a strong mirror reflection is safer on secondary images.
プロンプトの書き方に迷ったら？ワンクリックで白背景・背景合成・文字修正テンプレートを挿入
かんたん指示テンプレート
やりたい作業を選ぶだけで、最適な指示文を作成
「白背景」「シーン合成」「パッケージ文字修正」「モデル試着」から選ぶだけで、商品の形やロゴを崩さない指示文が完成します。
正面のメイン商品アングル、輪郭くっきり。ゴールドのスポイト付きガラス製美容液ボトル。ブランドのロゴとラベル文字は100%そのまま維持する，純白 #FFFFFF 背景＋柔らかな接地影。