noun
illustrative image; artist's impression; concept picture
Used for a picture or graphic that explains or demonstrates something, such as a mockup, diagram, or artist's rendering. Not a general term for any image.
新製品のイメージ画像が公開された。
An artist's impression of the new product was released.
このイメージ画像は完成予想図です。
This illustrative image is a projected completion drawing.
noun
digital image; image file
Computing term for a digital image, such as a photo or graphic file. Often used in technical contexts.
イメージ画像をJPEG形式で保存してください。
Please save the digital image in JPEG format.