Heavy and difficult to learn and practice what content harvesting and Zhejiang University in the process of refining the design photoshop

By learning a few weeks, I learned a lot of knowledge in fundamental aspects photoshop design. The teacher tells the story of the first drag and any combination of selection panel and the panel of tools and instruments.

Workspace and workflow:

1> portrait picture brightness adjustment in three ways : 1> menu image brightness and contrast (coarse)
2> Image menu gradation adjustment (may be adjusted to a specific fixed value)
3>, and acquired image brightness selection hybrid selection
operation and use 2> workspace : 1> manually arrange the document window
2> window menu arrangement
3> three screen modes
4> Tab key and the shift : F. key can freely in three screen modes switch

Straw color foundation and tools Group:

1> Color basics of digital design :
Color wheel and color systems
Left: the corresponding light is
right: the corresponding pigment
2> The most important tool eyedropper tool Group : eyedropper tool
Color Sampler Tool Zone : the Window menu information panel
3> the other three tools : ruler tool, annotation tools, counting means
with the removal of deposit 4> sampling point : AIt bond

Color Picker and Color Space:

1> foreground and background color
2> Color Picker four color model : HSB: Hue | saturation | luminance
Lab: luma | a component | B component of
RGB: Red | Green | Blue
CMYK: cyan | Magenta | Yellow | black (fixed toner)
3> + color gamut area = color space :
Color Space

Digital Image Processing:

①文档大小: 图像文档在PS内部以无损方式储存所占用的体积
②文档尺寸: 图像文档的宽和高在某个度量单位下的数值
③数字图像处理:尺寸更改
Size change
④图像大小:设置图像的宽、高和分辨率〈注意等比缩放和重新采样〉
⑤打印尺寸(视图菜单):根据PS预设菜单,在屏幕上显示图像文档的实际尺寸(物理尺寸)
⑥裁切工具:一步到位地将图像大小和画布大小两个功能结合到一起【请注意“删除裁剪的像素”选项,它的效果对应于图像菜单>>显示命令】
⑦保存文档相关命令:文件菜单
1>存储
2>存储为…
3>导出>>导出为…
4>导出>>存储为Web所有格式(旧版)…
⑧格式的对比
Format Comparison
⑨将背景图层转化为普通图层:按住AIt,并双击图层面板中的背景图层。
⑩JPG格式不支持透明度,透明区域将被自动填充为背景色;选择适当的品质以获得文档体积和图像质量之间的平衡。
⑪PNG8格式支持索引透明,每个像素只能是全透明或者不透明。
⑫PNG24格式支持ALpha透明,每个像素都拥有256级别的透明度(在ps中有时候被转化为0~100%不同程度的透明度)

⑬GIF格式支持索引透明每个像素只能是全透明或者是不透明;支持动画

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