I have successfully solved the issue. I posted the code to read the tiff files in a folder and convert into jpeg automatically. import os from PIL import Image yourpath = os.getcwd() for root, dirs, files in os.walk(yourpath, topdown=False): for name in files: print(os.path.join(root, name)) if os.path.splitext(os.path.join(root, name))[1].lower() == “.tiff”: if os.path.isfile(os.path.splitext(os.path.join(root, name))[0] + “.jpg”): … Read more
It has limited functionality, especially when it comes to writing back to disk non RGB images, but Christoph Gohlke’s tifffile module reads in 3 channel 16-bit TIFFs with no problems, I just tested it: >>> import tifffile as tiff >>> a = tiff.imread(‘Untitled-1.tif’) >>> a.shape (100L, 100L, 3L) >>> a.dtype dtype(‘uint16’) And Photoshop reads without … Read more
Start with the first bitmap by putting it into an Image object Bitmap bitmap = (Bitmap)Image.FromFile(file); Save the bitmap to memory as tiff MemoryStream byteStream = new MemoryStream(); bitmap.Save(byteStream, ImageFormat.Tiff); Put Tiff into another Image object Image tiff = Image.FromStream(byteStream) Prepare encoders: var encoderInfo = ImageCodecInfo.GetImageEncoders().First(i => i.MimeType == “image/tiff”); EncoderParameters encoderParams = new EncoderParameters(2); … Read more
To get the coordinates of the corners of your geotiff do the following: from osgeo import gdal ds = gdal.Open(‘path/to/file’) width = ds.RasterXSize height = ds.RasterYSize gt = ds.GetGeoTransform() minx = gt[0] miny = gt[3] + width*gt[4] + height*gt[5] maxx = gt[0] + width*gt[1] + height*gt[2] maxy = gt[3] However, these might not be in … Read more
Use Imagemagick, or better yet, Ghostscript. http://www.ibm.com/developerworks/library/l-graf2/#N101C2 has an example for imagemagick: convert foo.pdf pages-%03d.tiff http://www.asmail.be/msg0055376363.html has an example for ghostscript: gs -q -dNOPAUSE -sDEVICE=tiffg4 -sOutputFile=a.tif foo.pdf -c quit I would install ghostscript and read the man page for gs to see what exact options are needed and experiment.
You can do the following. Add your ggplot code after the first line of code and end with dev.off(). tiff(“test.tiff”, units=”in”, width=5, height=5, res=300) # insert ggplot code dev.off() res=300 specifies that you need a figure with a resolution of 300 dpi. The figure file named ‘test.tiff’ is saved in your working directory. Change width … Read more
This comes down to browser image support; it looks like the only mainstream browser that supports tiff is Safari: http://en.wikipedia.org/wiki/Comparison_of_web_browsers#Image_format_support Where are you getting the tiff images from? Is it possible for them to be generated in a different format? If you have a static set of images then I’d recommend using something like PaintShop … Read more
First, I downloaded a test TIFF image from this page called a_image.tif. Then I opened with PIL like this: >>> from PIL import Image >>> im = Image.open(‘a_image.tif’) >>> im.show() This showed the rainbow image. To convert to a numpy array, it’s as simple as: >>> import numpy >>> imarray = numpy.array(im) We can see … Read more