发信人: SpiritRain (妖精雨·荒唐的2006), 信区: ANSI
标 题: [教程]Bmp2Ascii转图的修改(入门组加修课)
发信站: 日月光华 (2007年01月12日14:29:35 星期五), 站内信件
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水木清华BBS ASCIIart版面2004年11月新手培训教程 .
. . ● Bmp2Ascii转图的修改篇
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格式:lololing 整理&文字:creambottle
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Bmp2Ascii转图的修改
这节课程的名称是"Bmp2Ascii转图的修改"
字面理解起来应该是涉及转图之后的修改过程中的一些事情
但实际上不仅仅是这样,转图的修改包括如下一些大的方面
[前期图的重点修改]
[对Bmp2Ascii转图工具的更良好的利用]
[对ascii图的后期修改中个人的适当发挥]
Page 1.
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前期图的重点修改
这一小节里我们分别用新手组和入门组的一张图来做说明的例子
试用过b2a之后大家会知道并不是把图打开选上字符就出现一副很完美的图那么有效
实际上b2a对图的"识别能力"并不如预期中那么高和聪明
这就需要我们根据自己的理解把图做进一步的处理,会使得后面的转图过程变的更轻松
前期修改图片的工具 简单的就用系统自带的"画图"
这里由于个人习惯我选择了photoshop
只要自己的个人目的明确 修改图片的工具只是辅助作用 用哪个工具都是可以的
根据图形的本身特点,准确的留出必要的轮廓和基本颜色就达到第一步处理要求了
Page 2.
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前期图的重点修改之初步判断
a.我们来仔细观察给的两张素材图,从图形和颜色上做出一些初步的判断
新手组-0001.bmp 图形上比较简单 轮廓比较分明 颜色主要是黑白色调的
但是换个ASCII颜色的眼光来看ASCII中只有16色,没有这么多丰富的灰色调来表现
我们前期把这张图的处理期望就是三色(黑和灰和深灰) 就可把轮廓准确的表达出来了
入门组-002.bmp 两只海豚基本身形 除了领结外基本就是一样的 那个球是对称的
换个ASCII颜色的眼光来看 保留海豚主体的靛色和白色 背景用深蓝色
球的颜色 由于ASCIIart的颜色里没有橙色 于是计划改成红白两色
这里的白色不是亮白,而仅仅是白色,替换颜色的时候可以用类似的浅灰就可以了
Page 3.
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前期图的重点修改之修改
b.根据a里面的确定目标修改 见新手组-0001_修改.bmp和入门组-002_修改.bmp
我把这节的.psd的修改的原始文件也同时放上来了
有兴趣的可以用ps打开看看 从图层的分层上可以明白我一些修改的细节处理想法
这步修改的同时可以看看是不是适当把图缩小一些(不过不改也可以)
但这里我都没有改动尺寸 但是海豚中球的部分调整了一下位置
而且因为两只海豚是一样的基本 所有我只留了左面的一只
因为最后修改的过程可以利用ansieditor的翻转功能可以得到另外一只的
Page 4.
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不是颜色选择越多越好
相信大家在试的时候往往很激动的选择了很多颜色 希望自己转出来的图更眩更准确
但实际上不是这样的 :)
B2a这个工具很有意思 也是有一些使用上的小窍门的
a.首先你要选择你图中对应ASCIIart中有的颜色才能更准确的转图
b.其次不是选择颜色越多越好,实际上颜色越简单越有助于你理解整体轮廓的感觉
有时候把握不好的时候可以前期处理的时候
把图加上非黑色的深色背景主体图黑白化(ps里有一项叫去色)
转图只用时候用背景色、对应的前景的几种颜色转来看看
Page 5.
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尽量不用亮色来转图
c.没有必要的情况下,尽量不用亮色来转图
可能有人说了 原图上有亮色啊 那就在前期修改的时候
把图中那块你认为后期需要体现出来的亮色部分用区别于主体的其他颜色填充上
(这个区别颜色必须明显不同于周边的颜色且在ascii有的颜色范围里)
这样保证在转图之后能认出来那个区域就可以了
亮色在后期修改的时候可以根据需要,在ansieditor自行添加
总之一句话,转图的时候轮廓越清晰越好,其他部分包括轮廓和基本颜色之后越简单越好
这样转出来的图更加一目了然而且有利于整体上的把握和进一步的个人发挥
Page 6.
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转图毛胚的参数参考
这一步转出来的毛胚图可以参考0001_转图毛胚和002_转图毛胚的ASCII图
0001_转图毛胚的参数是
x-rate和y-rate是1.4 工具b2a的左下角显示是y:22/22 即22行
颜色选择了黑█白█靛█ 字符用了"█◢◣◥◤▏▎▍▌▋▊▉▇▆▅▄▃▂▁▕"
002_转图毛胚的参数是
x-rate和y-rate是0.9 工具b2a的左下角显示是y:22/22 即22行
颜色选择了蓝█深灰█ 字符用了"█◢◣◥◤▏▎▍▌▋▊▉▇▆▅▄▃▂▁▕"
Page 7.
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后期修改中个人的适当发挥
刚开始由于各个方面的原因 大家往往拘泥于原有的素材图
总是抱怨 这个手 这个角落 ASCII字符表现起来并不那么好看
这个时候怎么办呢?呵呵 你的想象力和发挥就充分显示出用处来了
以我们前面的两个转图毛胚来举例看
电脑那个毛胚还不错了 所以改动性不用太大 不过如果对闪电的那个觉得有困扰的话
可以做些小小的改动 改成线条字符的闪电?或者干脆屏幕上换上点别的?
电脑颜色上不够可爱么 那我们充分利用一下ansieditor的"替换"功能换个颜色
Page 8.
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后期修改中个人的适当发挥
001这个例子这里做好一个后期的小例子 给大家做个参考
海豚的这个相应的修改就相对更自由一些 按想法给大家做两个后期例子做参考
这一节的意思就是 后期修改你才是图形的主宰 转图之后根据ascii字符的优势
保留主体的情况下 个别细节扬长避短的情况下可以修改和添加 不要拘泥于原图:))
我举例的这几个后期的图实际上都有进一步修改的更好的可能
因为举例点到就好了 所以基本上都是个意思 大家体会到精神意图就好了 呵呵
Page 9.
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本节推荐的课外辅导教材
走过这三步,还要通过多练习,多积累实际经验,多加强各方面具体的动手能力
多去观察精彩的色块作品,体会那之间的精彩配色,体会那之间的颜色奥妙
多及时总结自己每进一步的经验 才能更好的促进自己进一步
本节的课外辅导教材推荐lstar写的第三次跨站教程的"色块篇"(见本篇附件)
这期教程会伴随你水平不断进步的同时给你不同的体会和感受
所以每次看请细心体会 如果不能静下心看不如不看 :)
在发觉自己色块有长进了一点的时候推荐重新看一次这个教材
直到你有一天完全领略到了这期教程之中所有的风景
Page10.
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B2a始终都应该只是工具
B2a始终都应该只是工具 只有加强对各个方面的整体把握能力才能更好的驾驭它
不管怎样都不能停留在只做个简单转图操作者的满足上 这样就是被工具限制住了
有句话说的好 "师傅领进门,修行在个人" 听再多道理都只是道理和规律
真正最后成为自己的经验是要靠平时多观察、多交流、多动手实践得来的:)
不是说动手的数量一定会引起质变,但是不动手体会一定不会有实质性的改变
你要相信ASCIIart的世界里绝大多数人都不是天分奇高的天才的
只有保持ASCIIart的热情、始终怀着对ASCIIart的感悟心态 才能不断进取
下节预告: 简单qmd的制作 (二节课,用时3天)
Page11.
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从前有个RAR
RAR里有个ZIP
ZIP里面有个ISO
有一天你把ISO虚拟成光驱一看
里面有个RAR
※ 来源:·日月光华 bbs.fudan.edu.cn·[From: Legend RAR]
Sender: SpiritRain Fairy Rain Ridiculous 2006, message area: ANSI
Title: [Tutorial] Modification of Bmp2Ascii transfer image, additional course for entry-level group
Sending site: Sun and Moon Guanghua January 12, 2007 14:29:35 Friday, site mail
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Shuimu Tsinghua BBS ASCIIart layout November 2004 novice training tutorial.
. . Modification of Bmp2Ascii transfer image
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Format: lololing Organizing & text: creambottle
Modification of Bmp2Ascii transfer image
The name of this course is "Modification of Bmp2Ascii transfer image"
Literally understood, it should involve some things in the modification process after transferring the image.
But in fact it’s not just that. The modification of the transferred image includes the following major aspects:
[Key modifications to previous pictures]
[Better use of the Bmp2Ascii image conversion tool]
[Personal appropriate play in the later modification of the ascii diagram]
Page 1.
Key modifications to previous drawings
In this section, we use a picture of the novice group and the beginner group to illustrate the example.
After trying b2a, everyone will know that it is not as effective as opening the picture and selecting characters, and a perfect picture will appear.
In fact, b2a's "recognition ability" of pictures is not as high and smart as expected.
This requires us to further process the image according to our own understanding, which will make the subsequent image transfer process easier.
To modify pictures in the early stage, simply use the "draw" that comes with the system.
Here I chose photoshop due to personal habits.
As long as your personal purpose is clear and the tools for modifying pictures are only auxiliary, you can use any tool.
According to the characteristics of the graphics, accurately setting out the necessary outlines and basic colors will meet the first step of processing requirements.
Page 2.
Preliminary judgment on key revisions of early drawings
a. Let’s carefully observe the two material pictures given and make some preliminary judgments from the graphics and colors.
Novice group 0001.bmp The graphics are relatively simple with clear outlines and the colors are mainly black and white.
But from the perspective of ASCII colors, there are only 16 colors in ASCII, and there are not so many rich gray tones to express
In the early stage, we expected that the outline of this picture would be expressed in three colors, black, gray and dark gray.
Beginner Group 002.bmp The basic shapes of the two dolphins are basically the same except for the bow tie. The ball is symmetrical.
Let’s look at it from the perspective of ASCII colors. Keep the indigo and white colors of the dolphin body and use dark blue for the background.
The color of the ball. Since there is no orange in the ASCIIart colors, the plan is to change it to red and white.
The white here is not bright white, but just white. When replacing the color, you can use a similar light gray.
Page 3.
Key modifications to previous drawings
b. Modify according to the determined goals in a. See Novice Group 0001 Modify.bmp and Beginner Group 002 Modify.bmp
I also uploaded the modified original .psd file of this section.
If you are interested, you can open it in PS and take a look. From the layering of layers, you can understand some of my modification details.
During this step of modification, you can see if it is appropriate to reduce the size of the image, but you can also leave it unchanged.
But I haven't changed the size here, but the position of the ball in the dolphin has been adjusted.
And because the two dolphins are basically the same, I only kept the one on the left.
Because in the final modification process, you can use the flip function of ansieditor to get another one.
Page 4.
It’s not that the more color choices the better
I believe that everyone is often very excited and chooses many colors when trying it out. I hope that the pictures I turn out will be more dazzling and accurate.
But this is not actually the case:
B2a is a very interesting tool and it also has some tips on how to use it.
a. First of all, you need to select the corresponding color in your picture in ASCIIart to transfer the picture more accurately.
b. Secondly, it is not that the more colors you choose, the better. In fact, the simpler the colors, the better it will help you understand the overall outline.
Sometimes when you are not sure, you can deal with it in advance
Add a non-black dark background to the image to make the main image black and white. There is an item in PS called decolorization.
When transferring pictures, only use the background color. Let’s see the corresponding foreground colors.
Page 5.
Try not to use bright colors to transfer images
c. If it is not necessary, try not to use bright colors to transfer the image.
Someone may have said that there are bright colors in the original picture, so it was during the early revision.
Fill the bright part of the picture that you think needs to be reflected later with a color different from the main body.
This distinguishing color must be significantly different from the surrounding colors and within the color range of ASCII
This ensures that the area can be recognized after transferring the image.
Bright colors can be added in ansieeditor as needed during later modifications.
In a word, the clearer the outline when transferring the image, the better. The simpler the other parts including outline and basic color, the better.
The picture transferred in this way is more clear at a glance and is conducive to overall grasp and further personal development.
Page 6.
Parameter reference for transferring rough embryos
For the rough drawings converted in this step, you can refer to the ASCII images of 0001 rough drawing and 002 rough drawing.
0001 The parameters for transferring the blank are:
x rate and y rate are 1.4. The lower left corner of tool b2a displays y:22 22, which is line 22
The color was black, white and indigo and the characters were " "
002 The parameters for transferring the blank are:
x rate and y rate are 0.9. The lower left corner of tool b2a displays y:22 22, which is line 22
The color is blue and dark gray, and the characters are " "
Page 7.
Appropriate personal use in later revisions
At the beginning, due to various reasons, everyone tended to stick to the original material pictures.
Always complaining that this hand, this corner, ASCII characters don't look that good.
What should we do at this time? Haha, your imagination and use have fully shown their usefulness.
Take our previous two rough drawings as an example.
The computer prototype is pretty good, so the modifications don’t need to be too big, but if you’re bothered by the lightning one,
You can make some small changes, change it to a line character lightning, or simply put something else on the screen.
Isn't the color of the computer cute enough? Then let's make full use of the "replace" function of ansieditor to change the color.
Page 8.
Appropriate personal use in later revisions
For example 001, here is a small example for later use as a reference for everyone.
This corresponding modification of Dolphin is relatively free. I will give you two later examples for reference.
The meaning of this section is that you are the master of the graphics in later modifications. After converting the graphics, you should take advantage of the ASCII characters.
While retaining the main body, individual details can be modified and added to maximize strengths and avoid weaknesses. Do not stick to the original image:
The later pictures I gave as examples actually all have the potential to be better modified further.
It’s good if you point it out with examples, so it basically means the same thing. It’ll be good if everyone can understand the spiritual intention, haha
Page 9.
Recommended extracurricular tutoring materials in this section
To go through these three steps, you need to practice more, accumulate more practical experience, and strengthen your specific practical abilities in all aspects.
Observe more wonderful color block works, experience the wonderful color matching between them, and experience the mystery of colors between them.
Only by summarizing your own experience in a timely manner can you better promote your further progress.
The extracurricular tutoring materials in this section recommend the "Color Block Chapter" of the third cross-site tutorial written by lstar. See the attachment of this article.
This tutorial will accompany your continuous improvement in level and give you different experiences and feelings.
So please understand it carefully every time you watch it. If you can’t calm down and watch it, it’s better not to watch it:
When you find that your color block has improved a little, it is recommended to read this textbook again.
Until one day you fully appreciate all the scenery in this tutorial
Page10.
B2a should always be just a tool
B2a should always be just a tool. Only by strengthening the overall ability to grasp all aspects can we better control it.
No matter what, we can't stop being satisfied with just being a simple image transfer operator. This is because we are restricted by tools.
There is a saying that goes well, "The master leads you in, and the practice depends on the individual." No matter how many lectures you hear, they are just principles and rules.
The experience that finally becomes your own comes from more observation, more communication, and more hands-on practice:
This is not to say that the amount of hands-on experience will definitely lead to qualitative changes, but there will definitely be no substantial changes if there is no hands-on experience.
You have to believe that the vast majority of people in the world of ASCIIart are not extremely talented geniuses.
Only by maintaining the enthusiasm for ASCIIart and always having a mindset of understanding ASCIIart can we continue to make progress.
Preview of the next session: Production of simple qmd, second class, 3 days
Page11.
Once upon a time there was a RAR
There is a ZIP in RAR
There is an ISO in the ZIP
One day you can virtualize the ISO into a CD-ROM drive and take a look
There is a RAR inside
Source: 日月光华 bbs.fudan.edu.cn [From: Legend RAR]