.......................6 如何调整照片大小.........................................................10 如何移动照片到合适位置...................................................12 3. 对照片明暗和色彩做初步处理......................... 贺词和落款字体，字大小，字颜色的选择....................................17 文字大小.................................................................17 文字字体.................................................................17 文字颜色.... GIMP 图像编辑软件设计简单照片背景贺卡 一 贺卡照片背景 1. 照片选择 因为本贺卡设计的“图”部分完全依靠照片，因此照片的选择就非常重要。能选择好一个题材 恰当、布局合理、颜色明快的照片就等于贺卡的设计成功了一半。 题材选择 适合大法弟子贺卡的题材有很多，无论选用何种题材，都要注意照片要正，要表现纯，美， 善，光明。  大法相关：大法相关的图片也是很好的贺卡题材，比如大型排字照片，本地练功点、

Window Shift Ctrl W Close All Ctrl Q 退出 编辑 撤销/重做 Ctrl Z 撤销 Ctrl Y 重做 剪贴板 Ctrl C 复制选择部分 这将使一个副本被复制到 GIMP 剪贴板。 Shift Ctrl C Copy visible Ctrl X 剪切选中部分 This works the same as “Copy” the selection Ctrl M 合并可见图层 Ctrl H Anchor layer 工具箱 工具 R Rectangle Select E 椭圆形选择 F 自由选择 Z 模糊选取 Shift O 按颜色选取 I Intelligent Scissors Shift B Bucket Fill G Gradient N 铅笔 P 刷子 Shift E 橡皮 A 喷枪 K 墨水 Y MyPaint 翻转 Shift G Cage Transform W Warp Transform B 路径 T 文本 O 颜色拾取器 Shift M Measure Z 缩放 双击工具按钮打开工具选项对话框。 内容 B 工具箱 D 默认颜色 X 交换颜色 点击改变至该种颜色 Filters Ctrl F Repeat last filter Shift Ctrl F Reshow last

选择工具与选区 Ctrl Ctrl ctrl shift ctrl Ctrl Shaft Shift shift R 昌 说明 和矩形选择 椭圆形选择 自由选择 模糊选择/魔术棒 按颜色选择 智能剪刀 选中全部 反向选择 取消选中 选择浮动部分 选择浮动部分 编辑 快捷 ca cm y cm cm xx em 人 Ctrl shift Ctrl shift ctrl Ant 切变 透视 30变换 统一变换 控制屈变换 翻转镜像 框架变换 担曲变换 颜色与综合工具 工 双击工具按钮 ctrl D Ctrl 用 ctrl N ctrl shift Ant Enter ctrl shift D 说明 路径 文本 打开工具选项 颜色拾取器 交换颜色 默认颜色 改变至点击颜色 说明 复制图像 合并可见图层 新建. 新建图层 图像属性 复制图层

. . . . . . . . 394 14.10.41Add Alpha Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395 14.10.42Color to Alpha . . . . . . . . . . . . . . . . . . . . . . . . . . 395 14.10.44Threshold Alpha . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396 14.10.45Alpha to Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396 14.10.46Add Alpha channel to Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397 14.10.47Subtract

291 Chapter 18: Image Menu: Channel Ops And Alpha.................................................................... 293 The Channel Ops Menu 294 Alpha 303 Chapter 19: Select Menu......... Floating Selections............... 315 Introduction 316 Basic Layer Operations 317 Mask, Alpha And Selection Operations 322 Layer Align, Adjust And Move Operations 326 Transforms 344 Chapter 22: Channels And Duotones ......................... 351 RGB Channels 352 Alpha Channels 353 Using Channels For Spot Color Separation 355 PART VI Filters Chapter 23:

. . . . . . . . . . . . . 544 16.7.33 Add Alpha Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545 16.7.34 Remove Alpha Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545 16.7.35 Color to Alpha . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545 16.7.36 Semi-flatten . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545 16.7.37 Threshold Alpha . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 546 16.7.38 Alpha to Selection . . . . . . . . . . . . . . . . . . .

available disk space • Sub-pixel sampling for all paint tools for high-quality anti-aliasing • Full Alpha channel support for working with transparency • Layers and channels • A procedural database for both RGB and grayscale images have one additional color channel, called the alpha channel, representing opacity. When the alpha value at a given location in a given layer is zero, the layer is completely is determined by what lies underneath. When alpha is maximal, the layer is opaque, and the color is determined by the color of the layer. Intermediate alpha values correspond to varying degrees of translucency:

This is not ethically acceptable for publication! Alpha channel • Alpha channels are masks through which you can display images • Within an alpha channel: – White acts as the visible area – Black use an alpha channel? 0 50 100 150 200 250 0 50 100 150 200 250 In GIMP – Layer > Transparency > Add Alpha Channel Colour to Alpha Channel • You can assign a colour to the alpha channel make all pixels in your image with the assigned colour transparent • In GIMP – Colors > Color to Alpha Use this tool to pan around the preview Preview, indicating which areas are to be transparent

green and blue are referred as channels of the image. In addition to the colour channels, the alpha channel is used to store the opacity of the pixels. (Opacity ranges from fully transparent to channel. Some image formats, such as BMP and PNG, allow the use an additional 8 bits to store the alpha channel. Grayscale images, having only one channel, usually have a colour depth of 8 bit. Also