Hướng dẫn tự học Photoshop CS6 bản tiếng Anh

TABLEOFCONTENTS 1:GettingStartedPg.32:InterfaceLayoutPg.53:PalettesPg.64:ToolboxPg.105:SelectionToolsPg.116:AlterationToolsPg.127:DrawingandSelectionToolsPg.13 8:AssistingToolsPg.139:Col

AdobePhotoshopCS6Tutorial

GETTINGSTARTED

AdobePhotoshopCS6isapopularimageeditingsoftwarethatprovidesaworkenvironmentconsistentwithAdobeIllustrator,AdobeInDesign,AdobePhotoshopandotherproductsintheAdobeCreativeSuite.ThistutorialisanintroductiontousingAdobePhotoshop.Hereyouwilllearnhowtogetstarted,howtousetheinterface,andhowtomodifyimageswithbasiceditingskills

TABLEOFCONTENTS

1:GettingStartedPg.32:InterfaceLayoutPg.53:PalettesPg.64:ToolboxPg.105:SelectionToolsPg.116:AlterationToolsPg.127:DrawingandSelectionToolsPg.13

8:AssistingToolsPg.139:ColorBoxesandModesPg.1410:BasicImageEditingPg.1411:CroppingPg.1512:ResizingPg.1913:CorrectingPg.2214:SavingPg.27

Tocreateanewdocument,clickFile>New.ThiswillopentheDocumentSetupdialogbox(Figure2).

box

Hereyouwillbeabletonameyourfile,setupthecorrectpagesizeandorientationforyourdocument

Optionsinclude,butarenotlimitedto:

PageSizeandOrientation

Changethepagesizebytypinginnewvaluesforwidthandheight.Pagesizerepresentsthefinalsize

youwantafterbleedsortrimmingothermarksoutsidethepage.InthePresetdropdownmenuyou

canfindsuchcommonsizesasletter,legal,tabloid,etc.TypinginexactvaluesforHeightan

dWidthgivesyoumorecontroloverthesizeandorientationofyourpage

Resolution

Resolutionisthenumberofpixelsonaprintedareaofanimage.Thehighertheresolution,themorepixelsthereareonthepage,thebetterthequalityoftheimage.However,highresolutionincreasesthesizeofthefile.Thestandardrecommendedresolutionforprintedimagesis150-300,forWebimagesitis72

ColorMode

Chooseacolormodethatwillbestfityourproject.Forexample,whenmakingagraphicforaweb

site,chooseRGB.WhenmakinganimageforprintchooseCMYK

BackgroundContents

Choosethebackground:white,colorortransparent.Whenyouhaveenteredallofyourdocumentsettings,clickOk

Openinganimagefromadisk

filewhereyourimageissaved.ChoosetheimagefileandclickOpen.Atthispoint,youmaywanttosaveyourimageunderadifferentnamesothatyoucanalwayshavetheoriginaltofallbackonincaseofamistake

Tosaveyourfile,selectFile>SaveAsandtypeinthenewnameofthefileinthedialoguebox.4

Figure3.ThisisthelayoutofAdobePhotoshopinterface.

MenuBar

IfyoulookatthetopofthescreenyouwillseetheMenubar(Figure3),whichcontainsallthemainfunctionsofPhotoshop,suchasFile,Edit,Image,Layer,Select,Filter,Analysis,3

D,View,Window,andHelp

ofthepalettesarevisible,gotoWindowintheMenubarandchoosethepalettesyouneed.5

BelowisthedescriptionofthemostcommonlyusedpalettesinAdobePhotoshopCS6.PalettesusedformoreadvancedimageeditingwillbecoveredintheAdobePhotoshopCS6Tutorial-Intermediate

Color,Swatches,Style

TheColorpalette(Figure4)displaysthecurrentforegroundandbackgroundcolorsandRGBvaluesforthesecolors.Youcanusethesliderstochangetheforegroundandbackgroundcolorsindifferentcolormodes.Youcanalsochooseacolorfromthespectrumofcolorsdisplayedinthecolorrampatthebottomofthepalette

tte

History

TheHistorypalette(Figure7)storesanddisplayseachactionperformedallowingyoujumptoanyrecentstageoftheimagealteration.Thealterationsshouldbecreatedduringthecurrentworkingsession.Aftersavingorclosingthedocument,theHistorypaletteclearsallthecontents.Eachtimeyouapplyachangetoanimage,thenewstateofthatimageisaddedtothepalette.Itisimportanttoknowthatonceyouclickonanyoftheprevi-

87

Layersletyouorganizeyourworkintodistinctlevelsthatcanbeeditedandviewedasindividualunits.EveryPhotoshopCS6documentcontainsatleastonelayer.Creatingmultiplelayersletsyoueasilycontrolhowyourartworkisprinted,displayed,andedited.YouwillusetheLayerspalette(Figure9)oftenwhilecreatingadocu-

-Thisoptionhelpstoorganizeimageswithmultiplelayers.Clicktheicontocreateafolderforseverallayers

L)CreateNewFillorAdjustmentLayer

-Havethesameopacityandblendingmodeoptionsasimagelayersandcanberearranged,deleted,hiddenandduplicatedinthesamemannerasimagelayers.Clicktheiconandselectanoptiontocreateanewfilloradjustmentlayer

M)CreateNewLayer-Clickthisicontocreateanewlayer

N)DeleteLayer

-Todeletealayer,selectalayerintheLayerspaletteanddragittothetrashcanicon,orselectalayerandclicktheicon

IfyouusedotherAdobeproducts,suchasIllustratororInDesign,youshouldbefamiliarwiththetoolboxinAdobePhotoshopCS6asitsharessomeofthetoolsfromtheseapplications.IfyouareanewuserofAdobeproducts,youshouldkeepinmindthatyoumightnotneedtouseallofthetools.Inthistutorial,onlythebasictoolswillbediscussedin-depth

Sometoolsinthetoolbarhaveadditional“hidden”tools.Thesetoolshavesmallblacktrianglesintheright-

handcorner.Toviewthe“hidden”tools,clickandholddownonanytoolthathasagraytriangleinthecorner(Figure10)

Figure10.“Hidden”tools

Clickthetoolbutton,dragtodrawafreehandborderaroundtheareoftheimageyouwishtoselect

Selectsallobjectsinadocumentwiththesameorsimilarfillcolor,strokeweight,strokecolor,opacityorblendingmode.Byspecifyingthecolorrangeortolerance,youcancontrolwhattheMagicWandtoolselects

Clickthetoolbutton,thenclickanddragthetooloverthepartoftheimagethatyouwanttokeep.Resizetheselectedareadraggingthesquaresatthesidesandcorners.ClicktheReturn/Enterkeywhenyourcropboxissizedcorrectly

TakescolorsamplesfromcolorsonthepageanddisplaysthemintheColorBoxes.Selectthetool,clickonthecolorintheimageyouwishtosample.TheColorBoxwill

displaythiscolor

keyandleft-Paintsoveranimageusingthesourcedatafromaspecifiedhistorystateorsnapshot

Selectthetool,specifythebrush,blendingmode,opacity,style,areaandtolerance

Removespartofanexistingpathorstroke.YoucanusetheErasetoolonpaths.Textcanonlybeerasedwhenrasterized

Selectthetool,clickonthepartoftheimageyouwishtoerase.Dragtoerasepixels

Appliesacolorfilltoaselectedpartoftheimageortoanentirelayer

Selectalayeryouwishtoapplythepaintbucketto,clickthetoolbutton,clickonthe

startingpoint,andclicktheareayouwishtofill

Blursthesharpedgesofanimage

Selectanareawhereyouwishtoapplythetool.Clickthetoolbuttonandchoosethebrush,mode,andstrength.Dragthebrushalongtheedges

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Selectthetool,clickonthepageanddragtodrawapath.Clickanddragtheanchorpointstomodifythepath

Drawsastraightline.Othershapesthatarehiddeninthistoolare:RoundedRectangleTool,EllipseTool,PolygonTool,LineTool,andCustomShapeTool.Selectthetool,clickanddragonthepagetodrawaline

Magnifiesorreducesthedisplayofanyareainyourimagewindow

Selectthetool,chooseZoomInorZoomOutintheOptionsbar,clickontheareaoftheimageyouwishtomagnifyorreduce

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Croppingisoneofthemostbasiceditingtechniquesthatcanimproveyourimages.Croppinghelpstobringoutthemostimportantfeaturesinyourimageandfocustheviewers’attentiononthesefeatures.Croppingalsoallowsyoutomakeyourimageastandardphotosize

(SeeFigure11)

Figure11.Croppingbor

der

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yourimagestoaspecificsize,suchas8x10.Tocropanimagetoaspecificsize,dothefollowing:

1.Opentheimageyouwishtocrop

2.SelecttheCropToolfromtheToolbox

3.IntheOptionsbar,specifythevaluesforWidthandHeight(Figure13)

Figure13.CropToolOptionsb

ar

16

size5.Onceyouarecompletelysatisfiedwithyourcroppedimage,pressEnter

uee4.Inthemainmenu,gotoImage>Crop(Figure16).Theimagewillbeimmediatelycropped

Figure16 Image > Crop18

12.Resizing

ResizinginPhotoshopcanhelpyouprintyourimagesinstandardphotosizes,resizeandpreservethehighqualityofdigitalphotos,andenlargesmallimagestoapostersize

Resizingtoaspecificsize

Toresizeyourimagetoapresetsize,followthestepsbelow:

1.Inthemainmenu,gotoFile>New

2.IntheNewdialogbox,clickonthePresetdropdownmenu.Youwillseeseveralpresetsizes,suchas

Note:Allthepresetsizesareinportraitorientation.Ifyouwishtoresizeanimagewiththelandscap

eorienta-tion,youneedtocreateyourownpreset.Tocreateyourownsize,dothefollowing:

1.TypeinthevaluesforWidthandHeight,forexample7x5

2.Typeinyourdesiredresolution(150ppiforhighqualityprints,and72ppiisgoodforwebimages)

203.ClicktheSavePresetbutton

Digitalphotosusuallyhavelargedimensionsbutlowresolution,72ppi,whichaffectstheirqualitywhentheirsizeisdecreasedorincreased.Whenprinted,thephotoswiththechangedsizewilllookpixilated.Toresizethedigitalphotoswithoutloosingthequality,followthesesteps:

3.Inthemainmenu,gotoImage>ImageSize

4.IntheImageSizedialogbox,checktheResampleImageboxoff(Figure19).Typeinyourdesiredresolution(anythingbetween150and300ppi).Thephotoisnow3.208x3.083inches

tion

Ifyouwanttomakeyourdigitalphotointoapostersizeimage,youcandoitintheImageSizedialogbox.However,justincreasingthedimensionswillmaketheimageappearblurryandpixilated.Toenlargetheimagewithoutlosingthequality,followthesesteps:

1.Openthedigitalimageyouwishtoenlarge

2.Inthemainmenu,gotoImage>ImageSize

3.IntheImageSizedialogbox,makesuretheResampleImageboxischeckedoffandchoose

22 Figure22.RedEyeT

ool

13.Correcting

Digitalcamerastendtocausevariousproblems,suchas“redeye”or“hotspots”,ifyouuseflash,orunderexposure,ifyoudon’t.InPhotoshop,youcancorrecttheseproblems,aswellasadjusttheoverallcolorofyourdigitalphoto

4.ClickandholdonthelittleblacktriangleoftheHealingBrushToolbuttonandselecttheRedEye

Tool(Figure22)

23 Figure26.Correctedim

age

5.Clickontheredpartoftheeyeandpaint,holdingdownthemousebutton.Youwillseehowtheredwilldisappear(Figure23)

Figure23.Redeyecorrect

ed

HotSpotRemoval

Usingaflashcanalsocauseshinyareasonpeoples’facesortheflashtoreflectonshinysurfaces.Tocorrectthisproblem,followthestepsbelow:

1.Openthephotoyouwishtocorrect

2.SelecttheCloneStampToolfromtheToolbox

3.IntheOptionsbar,changetheBlendModefromNormaltoDarken(Figure24)

Figure24.SettingtheoptionsfortheCloneStam

pTool4.SettheOpacityto50percent

AddingFlash

Ifyoutookpicturesindoorswithoutaflash,theywillturnoutunderexposedanddark.Tofixunderexposed

25 Figure28.ChangingtheBlending

Mode

2.Inthemainmenu,gotoImage>Adjustments>Levels.Youwillseeadialogboxdisplayingadiagramofthecolorsinyourimage(Figure30).Theblacktriangleisforshadows,thegrayisformidtones,thewhiteisforhighlights.IntheChannelsdropdownmenu,youcanchoosebetweenRGB.Theseindicatewhetheryourchangeseffectallthecolors,orjustone(red,green,orblue)

box

Figure31.Underexposedp

hoto

Figure32.Correctedph

oto

Remembertosaveyourworkoften.Savingfrequentlylessenstheriskoflosingtheworkyouhavebeendoing.TosaveyourPhotoshopdocument,dothefollowing:

1.ClickFile>SaveAs

2.Navigatetotheplaceyouwouldlikeyourdocumenttobesavedbyusingthedropdownmenuandthenavigationwindow

3.EnterthenameofyourdocumentintheSaveAstextfield

4.ChooseaformattosaveyourprojectinfromtheFormatdrop-downmenu(Figure33)

becomeonelayer,andthefilesizewillbesignificantlysmaller.27