Adobe 25520388 User Guide - Page 320

Make quick luminance corrections, Auto Black Level, Auto Contrast, Auto White Level

Page 320 highlights

USING ADOBE PREMIERE PRO 315 Effects and transitions 4 Select the White Balance eyedropper and click to sample an area in the Program Monitor. It's best to sample an area that is supposed to be white. If you only want to affect one color or a specific range of colors in the clip, use the Secondary Color Correction controls in the Three-Way Color Corrector. 5 (Optional for the Three-Way Color Corrector only) Do any of the following: • To color balance by neutralizing a medium-gray area of the image, select the Gray Balance eyedropper and click an area that's supposed to be a medium gray. • To color balance by neutralizing a black area in the image, select the Black Balance eyedropper and click an area that's supposed to be black. The Gray Balance control adjusts the sampled area to become a neutral gray and the Black Balance control adjusts the sampled area to become a neutral black. Like using the White Balance control, these adjustments affect all the colors in the clip. Note: You can also click the color swatch next to the eyedroppers and use the Adobe Color Picker to select a sample color. More Help topics "Specify a color or range of colors to adjust" on page 324 "Fast Color Corrector effect" on page 356 "Three-Way Color Corrector effect" on page 363 Make quick luminance corrections The Fast Color Corrector and the Three-Way Color Corrector effects have automatic controls for making quick adjustments to the luminance in a clip. For a video on correcting color and luminance with the Fast Color Corrector, see the Adobe website. 1 Select the clip in a Timeline panel and apply either the Fast Color Corrector or the Three-way Color Corrector. See also "Apply effects to clips" on page 279. 2 In the Effect Controls panel, click the triangle to expand the Fast Color Corrector or the Three-way Color Corrector controls. 3 (Optional) Select the Show Split View option if you want to view a before and after comparison of your adjustment in the Program Monitor. You can specify whether the split view is horizontal or vertical by choosing from the Layout menu. You can also adjust the relative proportion of the before and after views. 4 Click any of the following buttons to quickly adjust the luminance to broadcast standards: Auto Black Level Raises the black levels in a clip so the darkest levels are above 7.5 IRE. A portion of the shadows is clipped and the intermediate pixel values are redistributed proportionately. As a result, using Auto Black Level lightens the shadows in an image. Auto Contrast Applies both the Auto Black Level and Auto White Level simultaneously. This makes the highlights appear darker and shadows appear lighter. Auto White Level Lowers the white levels in a clip so the lightest levels do not exceed 100 IRE. A portion of the highlights is clipped and the intermediate pixel values are redistributed proportionately. As a result, using Auto White Level darkens the highlights in an image. More Help topics Correct video color, easily Last updated 1/16/2012

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
  • 201
  • 202
  • 203
  • 204
  • 205
  • 206
  • 207
  • 208
  • 209
  • 210
  • 211
  • 212
  • 213
  • 214
  • 215
  • 216
  • 217
  • 218
  • 219
  • 220
  • 221
  • 222
  • 223
  • 224
  • 225
  • 226
  • 227
  • 228
  • 229
  • 230
  • 231
  • 232
  • 233
  • 234
  • 235
  • 236
  • 237
  • 238
  • 239
  • 240
  • 241
  • 242
  • 243
  • 244
  • 245
  • 246
  • 247
  • 248
  • 249
  • 250
  • 251
  • 252
  • 253
  • 254
  • 255
  • 256
  • 257
  • 258
  • 259
  • 260
  • 261
  • 262
  • 263
  • 264
  • 265
  • 266
  • 267
  • 268
  • 269
  • 270
  • 271
  • 272
  • 273
  • 274
  • 275
  • 276
  • 277
  • 278
  • 279
  • 280
  • 281
  • 282
  • 283
  • 284
  • 285
  • 286
  • 287
  • 288
  • 289
  • 290
  • 291
  • 292
  • 293
  • 294
  • 295
  • 296
  • 297
  • 298
  • 299
  • 300
  • 301
  • 302
  • 303
  • 304
  • 305
  • 306
  • 307
  • 308
  • 309
  • 310
  • 311
  • 312
  • 313
  • 314
  • 315
  • 316
  • 317
  • 318
  • 319
  • 320
  • 321
  • 322
  • 323
  • 324
  • 325
  • 326
  • 327
  • 328
  • 329
  • 330
  • 331
  • 332
  • 333
  • 334
  • 335
  • 336
  • 337
  • 338
  • 339
  • 340
  • 341
  • 342
  • 343
  • 344
  • 345
  • 346
  • 347
  • 348
  • 349
  • 350
  • 351
  • 352
  • 353
  • 354
  • 355
  • 356
  • 357
  • 358
  • 359
  • 360
  • 361
  • 362
  • 363
  • 364
  • 365
  • 366
  • 367
  • 368
  • 369
  • 370
  • 371
  • 372
  • 373
  • 374
  • 375
  • 376
  • 377
  • 378
  • 379
  • 380
  • 381
  • 382
  • 383
  • 384
  • 385
  • 386
  • 387
  • 388
  • 389
  • 390
  • 391
  • 392
  • 393
  • 394
  • 395
  • 396
  • 397
  • 398
  • 399
  • 400
  • 401
  • 402
  • 403
  • 404
  • 405
  • 406
  • 407
  • 408
  • 409
  • 410
  • 411
  • 412
  • 413
  • 414
  • 415
  • 416
  • 417
  • 418
  • 419
  • 420
  • 421
  • 422
  • 423
  • 424
  • 425
  • 426
  • 427
  • 428
  • 429
  • 430
  • 431
  • 432
  • 433
  • 434
  • 435
  • 436
  • 437
  • 438
  • 439
  • 440
  • 441
  • 442
  • 443
  • 444
  • 445
  • 446
  • 447
  • 448
  • 449
  • 450
  • 451
  • 452
  • 453
  • 454
  • 455
  • 456
  • 457
  • 458
  • 459
  • 460
  • 461
  • 462
  • 463
  • 464

315
USING ADOBE PREMIERE PRO
Effects and transitions
Last updated 1/16/2012
4
Select the White Balance eyedropper and click to sample an area in the Program Monitor. It’s best to sample an area
that is supposed to be white.
If you only want to affect one color or a specific range of colors in the clip, use the Secondary Color Correction controls
in the Three-Way Color Corrector.
5
(Optional for the Three-Way Color Corrector only) Do any of the following:
To color balance by neutralizing a medium-gray area of the image, select the Gray Balance eyedropper and click an
area that’s supposed to be a medium gray.
To color balance by neutralizing a black area in the image, select the Black Balance eyedropper and click an area
that’s supposed to be black.
The Gray Balance control adjusts the sampled area to become a neutral gray and the Black Balance control adjusts the
sampled area to become a neutral black. Like using the White Balance control, these adjustments affect all the colors
in the clip.
Note:
You can also click the color swatch next to the eyedroppers and use the Adobe Color Picker to select a sample color.
More Help topics
Specify a color or range of colors to adjust
” on page
324
Fast Color Corrector effect
” on page
356
Three-Way Color Corrector effect
” on page
363
Make quick luminance corrections
The Fast Color Corrector and the Three-Way Color Corrector effects have automatic controls for making quick
adjustments to the luminance in a clip. For a video on correcting color and luminance with the Fast Color Corrector,
see the
Adobe website
.
1
Select the clip in a Timeline panel and apply either the Fast Color Corrector or the Three-way Color Corrector. See
also “
Apply effects to clips
” on page
279.
2
In the Effect Controls panel, click the triangle to expand the Fast Color Corrector or the Three-way Color Corrector
controls.
3
(Optional) Select the Show Split View option if you want to view a before and after comparison of your adjustment
in the Program Monitor. You can specify whether the split view is horizontal or vertical by choosing from the
Layout menu. You can also adjust the relative proportion of the before and after views.
4
Click any of the following buttons to quickly adjust the luminance to broadcast standards:
Auto Black Level
Raises the black levels in a clip so the darkest levels are above 7.5 IRE. A portion of the shadows is
clipped and the intermediate pixel values are redistributed proportionately. As a result, using Auto Black Level lightens
the shadows in an image.
Auto Contrast
Applies both the Auto Black Level and Auto White Level simultaneously. This makes the highlights
appear darker and shadows appear lighter.
Auto White Level
Lowers the white levels in a clip so the lightest levels do not exceed 100 IRE. A portion of the
highlights is clipped and the intermediate pixel values are redistributed proportionately. As a result, using Auto White
Level darkens the highlights in an image.
More Help topics
Correct video color, easily