Path: csiph.com!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Kevin Wells Newsgroups: comp.sys.acorn.misc Subject: Re: Sprite files Date: Thu, 27 Feb 2025 23:27:21 GMT Organization: A noiseless patient Spider Lines: 65 Message-ID: <1e0ff9f55b.Kevin@Kevsoft> References: <5bf32b2585newslists@npost.uk> <5bf3a4da5fnewslists@npost.uk> <5bf3aa4d8bdave@triffid.co.uk> <5bf3b9342anewsmcc@blueyonder.co.uk> <5bf41b6693dave@triffid.co.uk> <5bf5356db2dave@triffid.co.uk> <5bf5501d72newslists@npost.uk> <93f055f55b.harriet@bazleyfamily.co.uk> <5bf5f2ac6enewslists@npost.uk> Injection-Date: Fri, 28 Feb 2025 01:37:38 +0100 (CET) Injection-Info: dont-email.me; posting-host="8d282c73e66f5b5465276bbb9b05e1d4"; logging-data="3518381"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+/k3h54pHPHTy0ByUFQxf01oA1MTKZ8TQ=" User-Agent: Messenger-Pro/9.01 (MsgServe/9.01) (RISC-OS/5.31) NewsHound/v1.54 Cancel-Lock: sha1:picGXGL11/bhEPuNExbnODrN8MA= X-Notice: set X-Clacks-Overhead "GNU Terry Pratchett" Xref: csiph.com comp.sys.acorn.misc:21598 In message <5bf5f2ac6enewslists@npost.uk> Chris Newman wrote: >In article , Harriet Bazley > wrote: >> On 26 Feb 2025 as I do recall, Harriet Bazley wrote: > >> > On 26 Feb 2025 as I do recall, Chris Newman wrote: >> > >> > [snip] >> > >> > >> > > I have a file which consists of many, many PDF pages. They contain >> > > the words to approx 2075 jazz tunes. I wanted one so I used >> > > !Snapper to tack a screen shot. I also tried outputting a whole >> > > page fro !PDF then cropping what I didn't need. Also tried the same >> > > from MuView. 'Twould seem Sleuth doesn't want to lay with sprites >> > > taken like this. It seems >> > > >> > >> > OCR won't work with sprites at screen resolution (which is only about >> > 90x90dpi). >> > >> However, depending on how the PDF file was created, i.e. (whether it >> holds the actual text or whether it is just somebody's wrapper for a >> collection of fuzzy JPEGS) it might be possible to get the page output >> at a much higher resolution - you can fake this in !PDF by zooming the >> view to, say, 400% and then using the Save as Sprite option. It still >> won't be in monochrome, so you will have to tick the monochrome >> 2-colour option in ChangeFSI and resave as a Mode 25 sprite. > >The original book was printed from a home computer. That has then been >taken apart re runthrough an automatic feed sacanner to produce a file of >397 PDF pages (171Mb). Each page has several songs distributed over two >columns. > >By uing !PDF and zooming the view up mightinly I was able to take a >screen shot of just he song I wanted. > >Running that through ChngeFSI at monochrome resulted in a block of black >instead of text unless I set the output to 256 colours. Then Sleuth3 >worked. > >The output wasn't brilliant due to the imitations of te original. > >I couldn't find a way of sending a single page to CView and running the >whole thing caused GView to stop with a window of multiple error messages. > With PDFutils you can split the pdf up into single pages, export the pdf to jpegs, pngs, tiffs plus other graphic formats. Plus my KPDFutil provides a front end so their is no need to enter the commands: -- Kev Wells http://kevsoft.co.uk/ https://ko-fi.com/kevsoft carpe cervisium British by birth English by grace of God.