Re: MI Aerial Photography
Dave, With the raster image open as a table, open the Table menu, then go to Raster - Adjust Image Styles. You can then tweak the brightness and contrast. regards Nigel On Wed, 2 Feb 2000 19:15:43 - David Eagle [EMAIL PROTECTED] wrote: I have some aerial photography onto which I am overlaying other data...When I print it out though the photos are very dark. Is there any way within the mapinfo environment that I can adjust the brightness/contrast of these photos? I have tried exporting the window as numerous file types and altering this in paint programmes which is sucessful but when I do this the quality of the picture is degraded and overlaid text becomes blocky... Any Ideas would be welcome... Thanks, Dave _ David A. Eagle (Graduate Analyst). WS Atkins Consultants - East Anglia Wellbrook Court, Girton Road, Cambridge, CB3 0NA. Tel: (01223) 276002, E-Mail: [EMAIL PROTECTED] -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED] __ Nigel N James Map Room Bodleian Library Broad St Oxford OX1 3BG UK tel : +44 1865 277013 fax: +44 1865 277139 Visit the Map Room Home Page at: http://www.bodley.ox.ac.uk/guides/maps/ -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
MI Aerial Photography
I have some aerial photography onto which I am overlaying other data...When I print it out though the photos are very dark. Is there any way within the mapinfo environment that I can adjust the brightness/contrast of these photos? I have tried exporting the window as numerous file types and altering this in paint programmes which is sucessful but when I do this the quality of the picture is degraded and overlaid text becomes blocky... Any Ideas would be welcome... Thanks, Dave _ David A. Eagle (Graduate Analyst). WS Atkins Consultants - East Anglia Wellbrook Court, Girton Road, Cambridge, CB3 0NA. Tel: (01223) 276002, E-Mail: [EMAIL PROTECTED] -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
RE: MI Aerial Photography
use the "Table, Raster, Adjust Image Styles ..." menu, select the image to modify, and then you can change the contrast and brightness -Original Message- From: David Eagle [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 02, 2000 2:16 PM To: [EMAIL PROTECTED] Subject: MI Aerial Photography I have some aerial photography onto which I am overlaying other data...When I print it out though the photos are very dark. Is there any way within the mapinfo environment that I can adjust the brightness/contrast of these photos? I have tried exporting the window as numerous file types and altering this in paint programmes which is sucessful but when I do this the quality of the picture is degraded and overlaid text becomes blocky... Any Ideas would be welcome... Thanks, Dave _ David A. Eagle (Graduate Analyst). WS Atkins Consultants - East Anglia Wellbrook Court, Girton Road, Cambridge, CB3 0NA. Tel: (01223) 276002, E-Mail: [EMAIL PROTECTED] -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED] -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
RE: MI Aerial Photography - Printing and Storage
Steven, Who is doing the photogrammetry? Is your photogrammetrist doing "softcopy" aerotriangulation or are they using analytical plotters? Do you intend to use only rectified imagery or are you going for orthophotos? What type of terrain are you working in? Is this urban, rural, dessert, forest, what? What do you need to resolve? Are you having your imagery scanned by a professional mapping company that uses a calibrated photogrammetric scanner? What calibrated focal length are you using from what altitude? What is the AWAR - Area Weighted Average Resolution of the mapping camera? Did it have IMC - Image Motion Compensation? Was it turned on for the flight? What is the level of image smear? Who wrote the specifications for the photography? Is this color, color infrared, or panchromatic? Is this a professional mapping project, or is some secretary/typist going to stick paper prints into an office-grade HP scanjet? Just a detail or two would help ... Clifford J. Mugnier ([EMAIL PROTECTED]) The Topographic Engineering Laboratory Department of Civil and Environmental Engineering UNIVERSITY OF NEW ORLEANS New Orleans, Louisiana 70148 Voice and Facsimilie: (504) 280-7095 On Wednesday, 14 July, 1999 9:15 PM, Steven Heapy [SMTP:[EMAIL PROTECTED]] wrote: Our Council has just had some aerial photography flown at 1:5000 and are investigating at what DPI we should have this scanned at ie 600 or 1200 DPI We are currently testing both, obviously the 1200 requires more storage and cost but gives an improved image on the screen and prints better. However both images that are printed through MapInfo 5.5 in the layout seem to loose a fair amount of quality compared to being printed in say Photo Editor. Also has anyone used and printed images compressed with Mr Sid over a NT network. All comments, sugestions and ideas regarding DPI (resolution), storage and printing would be appreciate Regards Steve -- -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
RE: MI Aerial Photography - Printing and Storage
Remote sensing details aside, sounds like you are running into the dreaded MI raster resampling feature. MI can't print 24 bit color at 24 bit to postscript printers. It resamples the raster to 8 bit to print. That isn't the problem. The problem is that it uses the Windows color pallet for the resample, thus your images look like they are at a low resolution, when in reality they do not have enough colors to properly represent the image. Scan your images at 1200 dpi, but if you are going to print them in MI then you will have to resample them to 8 bit yourself with Photo Editor. Just make sure that when you resample them you have PE create an optimized pallet. The images will degrade slightly, but most will not be able to distinguish the difference. You are going to run into the same problem with Mr. Sid files. That is why I do not believe that Mr. Sid is a good solution for MI. Besides ER Mapper will give you a better compression tool for free and ER Mapper's format has plug-ins for MI, AV, AutoCAD, PhotoShop and other apps. But even with ER Mapper you will run into a printing problem. There is a company, Engineering Mapping Solutions that has a good solution. Their product EMSView is a stand alone viewer that will display your compressed images as a single image and export them out to all major GIS apps in 24, 16 and 8 bit TIFFs (world and tab files included). They have even developed a mbx that will allow you to import an image from within MI. Their number is (602) 870-7811. Hope this helps, Bill Landis... Information Management Director, Global Mapping Services CB Richard Ellis P 602 735 5233 F 602 735 5655 "If at first you do succeed, try not to look astonished." - unknown -Original Message- From: Steven Heapy [SMTP:[EMAIL PROTECTED]] Sent: Wednesday, July 14, 1999 7:15 PM To: 'MapInfo-L' Subject: MI Aerial Photography - Printing and Storage Our Council has just had some aerial photography flown at 1:5000 and are investigating at what DPI we should have this scanned at ie 600 or 1200 DPI We are currently testing both, obviously the 1200 requires more storage and cost but gives an improved image on the screen and prints better. However both images that are printed through MapInfo 5.5 in the layout seem to loose a fair amount of quality compared to being printed in say Photo Editor. Also has anyone used and printed images compressed with Mr Sid over a NT network. All comments, sugestions and ideas regarding DPI (resolution), storage and printing would be appreciate Regards Steve -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED] -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
Re: MI Aerial Photography - Storage
The storage problem may be easier- how about burning them onto a CD-Rom? BH -Original Message- From: Landis, Bill @ Phoenix [EMAIL PROTECTED] To: MapInfo Mail List 1 (E-mail) [EMAIL PROTECTED] Date: Friday, 16 July 1999 1:50 Subject: RE: MI Aerial Photography - Printing and Storage Remote sensing details aside, sounds like you are running into the dreaded MI raster resampling feature. MI can't print 24 bit color at 24 bit to postscript printers. It resamples the raster to 8 bit to print. That isn't the problem. The problem is that it uses the Windows color pallet for the resample, thus your images look like they are at a low resolution, when in reality they do not have enough colors to properly represent the image. Scan your images at 1200 dpi, but if you are going to print them in MI then you will have to resample them to 8 bit yourself with Photo Editor. Just make sure that when you resample them you have PE create an optimized pallet. The images will degrade slightly, but most will not be able to distinguish the difference. You are going to run into the same problem with Mr. Sid files. That is why I do not believe that Mr. Sid is a good solution for MI. Besides ER Mapper will give you a better compression tool for free and ER Mapper's format has plug-ins for MI, AV, AutoCAD, PhotoShop and other apps. But even with ER Mapper you will run into a printing problem. There is a company, Engineering Mapping Solutions that has a good solution. Their product EMSView is a stand alone viewer that will display your compressed images as a single image and export them out to all major GIS apps in 24, 16 and 8 bit TIFFs (world and tab files included). They have even developed a mbx that will allow you to import an image from within MI. Their number is (602) 870-7811. Hope this helps, Bill Landis... Information Management Director, Global Mapping Services CB Richard Ellis P 602 735 5233 F 602 735 5655 "If at first you do succeed, try not to look astonished." - unknown -Original Message- From: Steven Heapy [SMTP:[EMAIL PROTECTED]] Sent: Wednesday, July 14, 1999 7:15 PM To: 'MapInfo-L' Subject: MI Aerial Photography - Printing and Storage Our Council has just had some aerial photography flown at 1:5000 and are investigating at what DPI we should have this scanned at ie 600 or 1200 DPI We are currently testing both, obviously the 1200 requires more storage and cost but gives an improved image on the screen and prints better. However both images that are printed through MapInfo 5.5 in the layout seem to loose a fair amount of quality compared to being printed in say Photo Editor. Also has anyone used and printed images compressed with Mr Sid over a NT network. All comments, sugestions and ideas regarding DPI (resolution), storage and printing would be appreciate Regards Steve -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED] -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED] -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
