像素的概念:
像素Pixel——位图的基本单位。
实例操作1:像素的演示操作
图片大小的4个容易混淆的概念:
像素数目(Pixels):宽1024px,高768px
实际尺寸(Print Size):厘米,英尺Inch
分辨率(Resolution):DPI(dots per inch)
占用磁盘空间:几兆M,几k
图片大小的4个容易混淆的概念:
像素数目(垂直或水平)=分辨率×实际尺寸
Pixels=Resolution (DPI)×Print size (in inches)
图片质量取决于:①像素数目;②颜色种类(位深度)。
平时所说的屏幕分辨率、相机分辨率,其实指的是像素数目。
Elsevier’s limits on图片实际尺寸:
Elsevier’s limits on占用磁盘空间:
The size of your figures will also affect if they can be uploaded successfully. We recommend that figures are not larger than 2 MB each.
If your figures are larger you may need to reduce the resolution or save them in a different format. (两种解决方法)
Often journals have an individual limit on file size.