Bước 2: Cho vào Photoshop, tạo 1 new layer và dùng bút lông (Brush tool) chấm lung tung trừ nội y ra
Bước 3: Ctrl + click lên layer chấm lung tung đó, sau đó chọn menu Select -> Inverse (hoặc Ctrl + Shift + I)
Bước 4: Tạo mới layer, xóa layer chấm lung tung và đổ màu (Paint Bucket Tool) lên layer mới.
Bước 5: Tận hưởng thành quả
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