GIMP tools - BDA

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GIMP 32 In this mode, each point has from 0 to 255 level of brightness. Values between black and white are different levels of grey. These two image modes differ in terms of the number of colour channels. RGB has three channels, grayscale – one and that is why such image takes three times less space. INDEXED COLOURS The number of colours in these images is limited, i.e. no more than 256, to save the random-access memory. Indexed colours are not something new. These formats were created a decade ago when computers had small random-access memories. Although now they are rarely used, they are supported by GIMP as it is easier to perform certain actions with this kind of image than with the RGB-colour image. GIF and PNG are indexed formats. Even though GIMP supports them, certain filters cannot work on such images because they have only a limited number of colours. If such filter is necessary, the image is transformed into a RGB model, filtered and then returned to the indexed image. To change the colour mode, use the command ImageMode. You should remember that switching between formats results in losing some of the information which will not be restored when switching back. For example, if you go from RGB to grayscale, the information on the colour is lost, so when you return to RGB, the image remains black-and-white. GIMP tools Capabilities of tools GIMP tools carry out many tasks. They are grouped into five groups: 1) selection tools specify the portion of the image that will be affected by subsequent actions; 2) paint tools alter colours in some part of the image; 3) colour tools alter the distribution of colours across the entire image; 4) transform tools alter the geometry of the image; 5) other tools, which do not fall into the groups above. Tools may be activated in one of the following ways: 1) by clicking on an icon in the Toolbox; 2) from the Tools menu;
33 3) from the keyboard using an accelerator key. By default, some tools are not accessible via the menu bar, so that tools that are rarely used do not bother. Clicking on (selecting) a tool opens a dialog of that particular tool at the bottom of the Toolbox. For example, if you select the Ellipse Select Tool, a dialog of this tool opens at the bottom of the Toolbox, where you can adjust settings which will remain during your work in the programme and after you resume it. If the settings adjusted are not saved, they will be reset to their default values. The button bar contains four buttons: 1) to save options for the current tool. It brings a Save Tool Options dialog. You can enter the name of the options in the Enter a name for the saved options box.
Page 1 and 2: STUDENT’S BOOK GIMP This work is
Page 3 and 4: 3 Foreground & Background Colors __
Page 5 and 6: 5 Copying and merging layers ______
Page 7 and 8: 7 Round corners ___________________
Page 9 and 10: 9 Introduction Gimp 1 is a graphics
Page 11 and 12: 11 Environment This dialog lets you
Page 13 and 14: 13 Theme This section lets the user
Page 15 and 16: 15 If the Use “Dot for dot” by
Page 17 and 18: 17 space. If you can choose between
Page 19 and 20: 19 When you save a file in this for
Page 21 and 22: 21 If you need to change a folder o
Page 23 and 24: 23 There is no need to select more
Page 25 and 26: 25 Image Window GIMP lets you work
Page 27 and 28: 27 If the drop-down list does not i
Page 29 and 30: 29 Pixel is a single point in the i
Page 31: 31 RGB model Colours are represente
Page 35 and 36: 35 1. Replace the current selection
Page 37 and 38: 37 In the selection, corners the po
Page 39 and 40: 39 Guides 18 - you can choose the t
Page 41 and 42: 41 We already know the first three
Page 43 and 44: 43 the mouse pointer inside the pat
Page 45 and 46: 45 Select the adjacent white areas
Page 47 and 48: 47 Foreground Select Tool lets you
Page 49 and 50: 49 context menu and select Alpha to
Page 51 and 52: 51 You have to clone some of the st
Page 53 and 54: 53 a) Standard Toolbox b) Tools ico
Page 55 and 56: 55 At first select one of the three
Page 57 and 58: 57 Moving Brightness and Contract s
Page 59 and 60: 59 Levels When working with a low d
Page 61 and 62: 61 Curves This tool changes the col
Page 63 and 64: 63 Reducing the value reduces the n
Page 65 and 66: 65 Select the operation from the Op
Page 67 and 68: 67 2. Access the command through Co
Page 69 and 70: 69 The dialog box has two groups of
Page 71 and 72: 71 a) Original image b) After the c
Page 73 and 74: 73 When you open an image and use t
Page 75 and 76: 75 14. Now try to blur the boundari
Page 77 and 78: 77 Tool Name of the tool Shape of t
Page 79 and 80: 79 Tool Name of the tool Shape of t
Page 81 and 82: 81 The dialog box displays the foll
Page 83 and 84:
83 Scale allows you precisely to mo
Page 85 and 86:
85 not added together. Activate Inc
Page 87 and 88:
87 o o BG color fill - the fill col
Page 89 and 90:
89 Thresholds = 15 Thresholds = 35
Page 91 and 92:
91 It should be mentioned that the
Page 93 and 94:
93 The Clone method mixes strokes w
Page 95 and 96:
95 The Perspective Clone Tool has t
Page 97 and 98:
97 Healing Select the Healing Tool
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99 9. Name the image, indicate the
Page 101 and 102:
101 The operations performed by thi
Page 103 and 104:
103 Colour picking Pick a foregroun
Page 105 and 106:
105 Type - to choose the effect of
Page 107 and 108:
107 them, you see the overall image
Page 109 and 110:
109 layer is highlighted by a darke
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111 The layer is selected and moved
Page 113 and 114:
113 Copying and merging layers Sele
Page 115 and 116:
115 Mode Description appearance. Th
Page 117 and 118:
117 Name of the command Layer to Im
Page 119 and 120:
119 Disable the Quick Mask mode. In
Page 121 and 122:
121 9. The selected lilies are copi
Page 123 and 124:
123 2. Reverse the layers. In the L
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125 colour (ffffff) The top part of
Page 127 and 128:
127 Font - you can select a font an
Page 129 and 130:
129 There is only the Background la
Page 131 and 132:
131 The text is hardly legible. Cha
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133 Thus, it is not recommended to
Page 135 and 136:
135 Edit Mode allows you selecting
Page 137 and 138:
137 In this mode you can fully edit
Page 139 and 140:
139 Create a new name of the path i
Page 141 and 142:
141 Close Tab - you can close the a
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143 Every point (pixel) is a combin
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145 Repeat steps 1-4. 5. Set the sl
Page 147 and 148:
147 Open the list of special comman
Page 149 and 150:
149 In the middle of the dialog, yo
Page 151 and 152:
151 Press the left mouse button and
Page 153 and 154:
153 You have just performed four ac
Page 155 and 156:
155 Below you can find lists where
Page 157 and 158:
157 You can set a colour using slid
Page 159 and 160:
159 In the Change Foreground Color
Page 161 and 162:
161 Button Name Description o angle
Page 163 and 164:
163 5. Create a copy of the petal a
Page 165 and 166:
165 1. Open a website where you fou
Page 167 and 168:
167 Button Name Description New gra
Page 169 and 170:
169 Click on the colour and it is a
Page 171 and 172:
171 Buffers It is an exchange buffe
Page 173 and 174:
173 At the bottom of the tab dialog
Page 175 and 176:
175 Button Name Description Name -
Page 177 and 178:
177 Error console This dialog displ
Page 179 and 180:
179 It is applied to cover unwanted
Page 181 and 182:
181 a) original image b) image afte
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183 2. Apply FiltersBlur Pixelize c
Page 185 and 186:
185 Motion blur The filter creates
Page 187 and 188:
187 B. 1. Select FileOpen command t
Page 189 and 190:
189 Enhance filters The filters of
Page 191 and 192:
191 The filter is designed to remov
Page 193 and 194:
193 Red eye removal This filter doe
Page 195 and 196:
195 Filter name Short description W
Page 197 and 198:
197 Filter name Short description C
Page 199 and 200:
199 A. c) Opacity - 100; Curl Locat
Page 201 and 202:
201 3. Set the following parameters
Page 203 and 204:
203 The colour of battens depends o
Page 205 and 206:
205 a) original image b) after the
Page 207 and 208:
207 How to use this filter? 1. Open
Page 209 and 210:
209 Curve bend The filter distorts
Page 211 and 212:
Page 213 and 214:
213 Apply Lens - create an effect o
Page 215 and 216:
215 o Center - set the coordinates
Page 217 and 218:
217 Center of Nova - choose the loc
Page 219 and 220:
Page 221 and 222:
221 To apply the filter to a word,
Page 223 and 224:
223 The slider of the Value scale i
Page 225 and 226:
225 If checked, the Independent RGB
Page 227 and 228:
227 1. Open an image; 2. Choose Fil
Page 229 and 230:
229 Enter values to the matrix boxe
Page 231 and 232:
231 1. Open image oil_1.jpg; 2. App
Page 233 and 234:
233 TASK. Open image can_1.jpg and
Page 235 and 236:
235 Cubism This filter modifies the
Page 237 and 238:
237 c) 1. Open image kub_1.jpg; 2.
Page 239 and 240:
239 a) original image b) image afte
Page 241 and 242:
241 a) original image b) after the
Page 243 and 244:
243 Check the Add drop-shadow check
Page 245 and 246:
245 The filter adds a fuzzy, blurre
Page 247 and 248:
247 Delta value on color - make the
Page 249 and 250:
249 If checked, the Work on copy ch
Page 251 and 252:
251 Font color - yellow (HTML notat
Page 253 and 254:
253 Filter name Designation Render
Page 255 and 256:
255 The Number of Titles group-box
Page 257 and 258:
257 The Width parameter sets the wi
Page 259 and 260:
259 The filter covers all layers or
Page 261 and 262:
261 5. Apply FiltersRenderLava comm
Page 263 and 264:
263 Circuit The filter create appli
Page 265 and 266:
265 4. Select the Bucket Fill Tool
Page 267 and 268:
267 24. Paint a mouth. To open a ne
Page 269 and 270:
269 3. As a drop-down list of file
Page 271 and 272:
271 RGB RGB is the default color mo
Page 273 and 274:
273 By means of the color model sel
Page 275 and 276:
275 If the working window (canvas)
Page 277 and 278:
277 Apply ImageGuidesNew Guide (by
Page 279 and 280:
279 ImageGuidesNew Guides from Sele
Page 281 and 282:
281 one of the selected units becau
Page 283 and 284:
283 2. Press Smurge Tool . Remove t
Page 285 and 286:
285 3. To make it easier to retouch
Page 287 and 288:
287 6. Now invert colors. Apply Col
Page 289 and 290:
289 11. Now, we will retouch the ey
Page 291 and 292:
291 a) objects selected in the mask
Page 293 and 294:
293 6. Move the Background layer up
Page 295 and 296:
295 a) before the filter is applied
Page 297 and 298:
297 7.2. Apply Filters ArtisticWeav
Page 299 and 300:
299 Before designing such a "busine
Page 301 and 302:
301 6.2. Apply EditCopy command; 6.
Page 303 and 304:
303 3. Go back to RGB color model.
Page 305 and 306:
305 7. Press the Flip Tool. Select
Page 307 and 308:
307 8. Draw the luminous windows fo
Page 309 and 310:
309 15. We will now use the filter
Page 311 and 312:
311 24.1. Drag the corners of the s
Page 313 and 314:
313 12. Enter text TALLINN KOOLITUS
Page 315 and 316:
315 2.1. Enter the banner text to t
Page 317 and 318:
317 23. Choose Filters Light and Sh
Page 319 and 320:
319 13. In the Paths dialog, click
Page 321 and 322:
321 3. Make sure that the options d
Page 323 and 324:
323 9. Change the layer properties
Page 325 and 326:
325 5.3. Press OK; 6. In the Layers
Page 327 and 328:
327 4. Select the Blend Tool and ad
Page 329 and 330:
329 23. We may apply various filter
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