Resampling cannot add more detail. All it does is approximate to smooth out the Pixelation that occurs when increasing the image pixel dimensions.
Depending on what you are doing it is about finding a happy medium of quality/file size.
I would avoid using Jpeg or other formats that use compression as this adds to detail being lost. PNG and BMP seem to be the norm for quality images.
Having images in TC can be problematic and I try not to insert images that are overly large.
Thanks for the information Darrel.
For house-- and other buildings-- 2D construction plans, on the Cover/Site-Plan Sheet, I usually have a Parcel Map (from a public on-line source... they store it as a TIFF), a "Vicinity Map" which is usually a screen-capture of Bing Map (streets only, no satellite) or similar, and a Google-Earth or otherwise-acquired Satellite View screen-capture (or "Save Image" from within Google Earth).
Why do I insert these Images in an otherwise tiny
(Bytes-wise) TurboCAD file?: Because it looks cool!
Trying to set myself apart from the other local architectural-draftspersons, I guess.
I like to start with the Image being as close to as big as I want it in TurboCAD before Inserting into TurboCAD, so that I'm not "spreading out" the pixilation in TurboCAD by scaling the Image larger; do I know if that works or is necessary?... no, I don't.
I basically don't know enough about all the code and whatnot that goes into these Images. Example:
In a recent drawing, I used Google Earth to "Save Image" on my laptop monitor, so it was smaller, but a bit higher DPI than my secondary monitor, which is about 96 DPI.
That color Image was 5.25"x8.23"; 96 DPI; and 284KB
Then, in IrfanView, I resized/resampled it to Grayscale and 20"x31.35"; 300 DPI, which resulted in a file size of 16,784 KB
The Cover-Sheet/Site-Plan referenced above is shown below. I ran into an issue trying to Save it larger than 1,000 pixels wide or high, I'll have to post that in the "Problem" board. -Alvin
« Last Edit: March 12, 2014, 04:22:36 PM by Alvin Gregorio »
(mostly Residential Architectural 2D; no formal CAD Training; intermittent TurboCAD user since yr. 2000 [ver6.5])
---TurboCAD: V21PP; V20.2PP; V19DL; V11.2Pro; Windows-7-Pro/64-bit; Intel-Core-i3 CPU; 2.27ghz; 4GB RAM; Intel HD Graphics (CPU based)