Any one knows the answer?
I create a Jfreechart, and use ChartUtilities.saveChartAsPNG to save the chart into a png image. But when I open the image file, all japanese characters inside the jfreechart are shown as squares.
Please help!!
Thanks,
APF
Related
I am currently trying to export a map in Qgis to an image format (JPEG or PNG) using the Print Composer. I have three layers on the map and two of them are filled with a texture (lines for South America and dots for Africa and Asia). When looking inside the Qgis fillings seem just fine. However, when I export the map to image format and open it both lines and dots somewhat mingle and the fillings become blurred. Only when I zoom in enough the lines and dots become distinct again. I did some internet research, but I could not find anything useful. Is there a way to export the map to image format and yet keep the fillings similar to what is displayed inside the Qgis?
Thank you.
I am using JFreechart to generate some plots, and I found the lines in my plot is blurry, but the demo shows that all the lines are thin and without any blurry, I was wondering if there any to generate good quality plot on a panel.
With more information, I can't explain the rendering and resampling artifact illustrated in your question. Starting from MinMaxCategoryPlotDemo1.java in the demo, I added this line to get the PNG image shown.
ChartUtilities.saveChartAsPNG(new File("temp.png"), jfreechart, 1024, 768);
In particular,
I chose a larger size, as it's generally better to have more pixels than fewer when resampling.
I chose PNG, a lossless image format used in the MinMaxCategoryRenderer API image.
Click to enlarge:
I have a Silverlight application wherein I want to convert colored TIFF image with LZW compression into black and white image with CCITT4 compression.
There is a sample that shows how to Convert System.Drawing.Bitmap to a black and white TIFF.
You should get what you want if you combine the sample above with the answer that shows how to convert a Silverlight image to bytes.
It looks awful. Please have a look at absolute-websites.com/portfolio and you'll see what I mean. What an I do to fix this please?
Are you referring to the Flash text at the top? Rasterize the text as JPG, GIF or PNG.
I am trying to save images in wpf application, but after saving some reddish tint color is coming on that images and also losing sharpness of those image. I am using PNGBitmapEncoder for that and saving imags in PNG format. I dont know what is happenning.
Anybody Plz give me the solution.. I am trying from so many days. Plz help me regarding this issue.
Thanks in advance
You'll need to post your code and possibly an example of what the incorrect image looks like.
The most likely explanation is that you've got a mis-match between the order of red green & blue pixels in memory vs what the file format is expected, or that the red value is being increased at the expense of the green & blue somehow.
Are you trying to resize the image as well? That might explain the blurriness.