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images [2016/09/24 08:15] dokuadmin ↷ Links adapted because of a move operation |
images [2016/09/24 08:15] (current) dokuadmin ↷ Links adapted because of a move operation |
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====== Images ====== | ====== Images ====== | ||
- | Bitmapped images are described in chapter 8.9 //Images// on page 203 of the {{pdf32000_2008.pdf# | + | Bitmapped images are described in chapter 8.9 //Images// on page 203 of the {{pdf:pdf32000_2008.pdf_page_211|PDF specification}} on quite readable 14 pages. |
The implementation is in package '' | The implementation is in package '' | ||
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</ | </ | ||
- | {{demo20_ImagesUsage.pdf}} shows the result with an example image. | + | {{pdf: |
- | {{demo21_Images.pdf}} shows some PDF features of images (masking, rotation, interpolation, | + | {{pdf: |
===== Object Models ===== | ===== Object Models ===== | ||
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==== Filter ==== | ==== Filter ==== | ||
- | Although all Smalltalk images can be used for PDF, not all PDF images can be transformed to Smalltalk images. For one, several {{pdf32000_2008.pdf#page=22|filters}} specific to images are not implemented: | + | Although all Smalltalk images can be used for PDF, not all PDF images can be transformed to Smalltalk images. For one, several {{pdf:pdf32000_2008.pdf_page_22|filters}} specific to images are not implemented: |
* **RunLengthDecode** 8 bit monochrome images | * **RunLengthDecode** 8 bit monochrome images | ||
* **CCITTFaxDecode** CCITT encoded 1 bit monochrome images | * **CCITTFaxDecode** CCITT encoded 1 bit monochrome images |