Selfie spectrometry: Why tablets, laptops, and cell phones have not taken over visible spectrometry

Simple analytical method for total biogenic amines content determination in wine using a smartphone

“…As pointed out by A. Scheeline, 21 phones are typically programmed to respond nonlinearly when converting the image in order to produce vivid, aesthetically pleasing outputs. Thus, we cannot count on a straightforward and linear relationship between the response of the green and red pixels of the smartphone's CMOS sensor and the G and R channels of the processed JPG image.…”