Rainbow trout (Oncorhynchus mykiss) skin digital images

160 rainbow trout were fed either a commercial based diet (80 fish) or a 100 % plant-based diet (80 fish) and photographed using consumer-grade digital camera. Each live fish was photographed with a 12-megapixel Nikon D3300 digital camera (Nikon Corp., Tokyo, Japan) under a lighting system consisting of four halogen lamps (200 W bulb) at an angle of 45 degrees, and 35 cm above the sample to not only provide constant intensity output but also to give the uniform light intensity over the fish sample. Images were collected in a dark room with only light source, coming through halogen lamps cast on fish skin. Digital camera was located vertically at 56 cm from the sample. All setting on the camera were on manual. The setting of camera was: exposure mode = manual, shutter speed = 1/160 s, aperture = f/4.0, ISO sensitivity = 100. The images were recorded in Nikon Raw format (NEF) and transferred to a laptop for further processing.An excel sheet which includes all relevent details also provided.本数据集共纳入160尾虹鳟，其中80尾喂食商用配合饲料，剩余80尾喂食全植物基饲料，随后使用消费级数码相机对每条活鱼进行拍摄。拍摄采用1200万像素尼康D3300数码相机（日本东京尼康公司（Nikon Corp.）），照明系统由4盏200W卤钨灯组成，以45度角、距样本35cm的高度布置，既保证光照强度恒定，也使鱼体样本受光均匀。拍摄场景设置在仅卤钨灯提供唯一光源的暗室中，相机垂直置于距样本56cm处，所有拍摄参数均设为手动模式，具体参数如下：曝光模式=手动，快门速度=1/160秒，光圈=f/4.0，ISO感光度=100。图像以尼康原始RAW格式（Nikon Raw format，NEF）存储，并传输至笔记本电脑以待后续处理。此外，数据集还附带一份涵盖全部相关细节的Excel表格。