In his youth he travelled in the East, and reproduced Oriental life and scenery with a bold fidelity to nature that puzzled conventional critics.
It was marked by vivid dramatic conception, bold and even rough brushstrokes, and startling contrasts of color and of light and shade.
He availed himself of his travels in the East in dealing with scenes from Scripture history, which he was probably the first of European painters to represent with their true and natural local background.
Of this class were his Joseph sold by his Brethren, Moses taken from the Nile, and his scenes from the life of Samson, nine vigorous sketches in charcoal and white.
Decamps produced a number of genre pictures, chiefly scenes from French and Turkish domestic life, the most marked feature of which is humour.