The phrase "a grey scale" is correct and usable in written English.
It can be used to refer to a range of shades of grey, often in contexts related to art, photography, or design.
Example: "The artist chose to work in a grey scale to emphasize the contrast between light and shadow in her paintings."
Alternatives: "a grayscale" or "a range of greys".
Only the B channel, which contained the most information, was kept to obtain a grey scale image (Ig).
The Extended Voronoi Transform of a binary image of the environment gives a grey scale that is darker near the obstacles and walls and lighter far from them.
Selected laser-scanning confocal z-planes are shown for each developmental stage in which both nuclei (H2B-GFP) and cortical cytoskeleton (Phalloidin) is shown merged on a grey scale.
The distance of each voxel in the BM extravascular space to the closest anatomical landmark of interest was automatically measured and represented as a 3D distance map in a grey scale (Fig. 5a).
The shell energy of yet-unknown isotopes, calculated according to the modern Koura–Tachibaba–Uno Yamada (KTUY) mass formula that combines the macroscopic and microscopic models19, is displayed as a grey scale.
By ultrasound assessment of the bifurcations of carotid and femoral arteries, maximum combined plaque/intima-media thickness (CPIMTmax) and mean plaque density (MPD, in a grey scale from 0 to 255) were also measured.
This differs substantially from other intra-cavity laser beam-shaping approaches as only a grey-scale image needs change for the laser mode to be selected.
The sensor is translated within the frame using remotely placed stepper motors, and images are generated with a grey-scale resolution of 16 bits/pixel.
The phase and amplitude of the holographic mirror may be controlled simply by writing a computer-generated hologram in the form of a grey-scale image to the device, for on-demand laser modes.
a Grey-scale ultrasound image shows an isoechoic, circumscribed nodule.
a Grey-scale ultrasound shows a partially circumscribed macrolobulated nodule without internal vascularity.
