Friday, January 30, 2009

Chrome hidden feature continue...

Interesting hidden eggs

Chrome has a few hidden functions; to check them out, type the following in the address bar of Chrome.
1. about:memory-shows the memory usage vis-à-vis other open browsers of the system and also the break-up of all the tab windows.
2. about:stats-shows complete stats of various parameters that Chrome is dependent on.
3. about:internets-starts a screensaver of 3D Pipes (doesn't work in Vista as the Pipes screensaver was available in XP only)
4. about:dns-shows the DNS listing of sites visited and used for pre-fetching.
5. about:plugins-lists all the installed and supported plugins.
6. about:network-shows the network activity that is going on for I/O requests, etc.

hidden configuration for Chrome

Thursday, January 17, 2008

job and career

I just realized "job" is a bigger word than "career"

Friday, December 21, 2007

攝影家手札論壇

http://www.photosharp.com.tw/photosharp/

攝影技巧入門

http://www.lib.ncu.edu.tw/~hong/atmhmpg/fotog/fotog2.htm

瞭解景深

http://jhchen62.vbird.org/photo/camera_dep.htm

瞭解景深,在攝影裡是一個重要的基礎

  一般提到景深時,或多或少都會提到光圈值與景深的相互關係,而光圈值在一般常提及的有1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32, 45, 64不等

  請注意到:

  • 光圈:指鏡頭裡葉片開闔的大小
  • 光圈值:以數值來表光圈的開啟大小

  而光圈開啟愈大,則光圈值的數字愈小,請參見光圈一文,所以我們可以知道,光圈值愈小,則鏡頭裡的光圈葉片開啟得愈大,而進光量也愈多(即曝光量大),了解了光圈與光圈值的相互關係,我們便要來提一提光圈與景深的關係了

  一般提到景深時,我們會以來評斷;

  • 景深較,表示在對焦點的前後,看到的東西會比較模糊
  • 景深較,表示在對焦點的前後,看到的東西會比較清楚

景深效果

我們很難單從字面上了去瞭解景深的含義,我覺得『模糊圈』這個概 念或可稍微表達。在這裡我們也必須接收一個觀念,CCD成像是由無數個光點所組成,但鏡頭所產生的投射影像並非是一個點,而是一整個圓圈,而這個圓圈的直徑 是可以測量的。真實世界是立體呈現,但在相片上卻是 2D 平面,有時『模糊圈 』會區隔中央產生前後一致的模糊景深效果,我們也稱之為『前』、『後』景深的表現。

一般來說在一張照片上,景深的大小取決於三個方面:

  1. 鏡頭的焦距:使用鏡頭的焦距越短,景深越大;反之,景深越小。

  2. 光圈的大小:光圈越小,景深越大;反之,景深越小。

  3. 相機到主體的距離:相機離被攝體越遠,景深就越大;反之, 景深就越小。

我們先不要談論複雜的變焦鏡頭,以簡單的『定焦』50mm鏡頭來 說,當聚焦在一定距離時,景深與光團大小直接有關;許多人像攝影師偏愛大光圈所產生的散景效果,其來有自;一般的商品攝影,則習慣縮小光圈達到前後景深寬廣的目的。儘管,對任何鏡頭來說, 都有某種最佳光圈,例如:多數的鏡頭在 F8 光圈下擁有極佳的影像表現,但比此光圈更小的光圈值,例如:F22,儘管能產生更大的景深,但從藝術的效 果來看,將是使影像的清晰度降低而不是提高。

  • 長短焦距的交互運用

相較於『定焦』鏡頭,『變焦鏡頭』可以幫助你快速的調動遠近,或者可以說迅速掌握廣角和特寫鏡頭。雖然,構造上此一鏡頭有變形的問題,但現代科技已經大幅簡單此一缺陷。大部份的專業級數位相機 都具有 PSAM 手動模式,而最適合景深攝影者使用的莫過於光圈先決模式了!此模式的優 點是能夠直接控制景深,部分相機例如:PENTAX *istD*系列附帶有景深預測按鈕,允許使用者預先判斷景 物在最後照片上的清晰範圍。如果你想要拍攝景深照片,按上述的三種鏡頭方法+機體景深預觀,在攝影上就可以產生十分精確的效果。



http://www.digital.idv.tw/DIGITAL/newuser/Skill/BasicSkill10/BasicSkill-2.htm

Friday, November 30, 2007

difficult and challenge are not equal.
Challenge has favors of excitement, motivation, sexy, eager and passion.
difficult, however, sometimes, just a matter of times.
Be aware of this on the career path.

Thursday, October 04, 2007

10 slides

  1. Problem
  2. Your solution
  3. Business model
  4. Underlying magic/technology
  5. Marketing and sales
  6. Competition
  7. Team
  8. Projections and milestones
  9. Status and timeline
  10. Summary and call to action

Tuesday, July 24, 2007

2 paths

If you want an average successful life, it doesn’t take much planning. Just stay out of trouble, go to school, and apply for jobs you might like. But if you want something extraordinary, you have two paths:
1. Become the best at one specific thing.2. Become very good (top 25%) at two or more things.

Tuesday, January 23, 2007

garden at 5th floor

grill station

Breakfast

Breakfast

Jan 2007 Singapore Grand Hyatt Orchard