Drawstring Text Quality - Image To Save As A PNG - GIF - JPEG
Oct 30, 2009
I have a routine that creates a report which includes text and graphics. When I print to a PDF or printer the output looks great. When I draw the report on an image to save as a PNG, GIF, JPEG, etc. it does not look as good and I understand that is related to the 96 dpi native resolution. However, I made some modifications, and even though the graphics part of the image looks better, the text does not look as good as the PDF. I am creating the image using 300 dpi and text rendering is set at the highest quality.
[Code]...
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Sep 2, 2011
I want to make a wallpaper changer because windows high compresses the the image so you see artifacts even if already use a jpeg or even a really high quality png or bmp.
I know what I need to do for all of it I just need to know how to save an image to a jpeg without it being compressed. I have tried using the encoderparamters and getcodecinfo aswell as setting the quality to 100 but I still get a really bad looking image in the end.
Is there a way where I can save an image to a jpeg without getting the crappy image quality like with visual basic?
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Dec 28, 2010
'm working on an Image Encrypting software which reads out all the pixels of an image and then relocating the pixels in some way.
My Code is as below
Dim Img As New Bitmap(tbEpath.Text)
Dim ImgSize As Integer = Img.Width * Img.Height
Dim Pixels(Img.Width, Img.Height) As Color
[code]....
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Jul 7, 2010
In the code below if I remove the FillRectangle line the text quality is not good. Why?
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Oct 3, 2011
I am trying to edit an image. I can open the image with Picturebox1.load(mypicture)
I can change the pixels/edit the picture by Dim img as new bitmap(picturebox1.image)
[Code]...
now here is the weird part. When I save the image the filesize INCREASES..but the picture dimensions are the same Example... TEST.PNG 1.3KB, when opened up via picturebox/saved the image is now 2.3KB
not sure why...i even though I specify system.drawing.imaging.imageformat.PNG
samething with JPG... it actually SHRINKS it evenmore.. example 88KB jpeg.. saved as jpeg is now 47.7KB...
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Nov 13, 2011
I'm a VB beginner.I've been playing with Graphics.DrawString by watermarking a picture with a text string. The picture below to the left comes from PictureBox with a text string drawn with Graphics.DrawString. The font style used is Arial 48 points, regular, I think. The picture in PictureBox shows just as I configure. Great... The resolution of the original Terri Hatcher picture is 300 dpi (300 x 300). Exporting this picture with Graphics.DrawString, I get the picture below to the right. The text string appears a lot bigger than previously shown in PictureBox. It turns out that the text size varies, depending on the resolution of the original picture. That's kind of odd. I develop several graphics applications in a different environment and have never seen this sort of graphics.drawstring thing. Anyway,
my sample application seems to draw a text string at an image resolution of
[Code]...
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Sep 27, 2009
how to save a jpeg image to the database. I am using fileopendialog to upload the image to the picturebox. This works fine but I now need to save this image back to the database. I am using an Oracle database (11g) and the image datatype is declared as a blob.
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Feb 6, 2011
i am using the DrawString Method to insert a Text on an Image. But i am not able to center it on the image. How could i do that? Thats my code:
Dim g As Graphics = Graphics.FromImage(destBitmap)
g.InterpolationMode = Drawing2D.InterpolationMode.HighQualityBicubic
g.PixelOffsetMode = Drawing2D.PixelOffsetMode.HighQuality
[code]....
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Sep 6, 2009
So, what I've got is a picturebox and a textbox, I got some code to put text into a picturebox so I could better understand how it works, but what I don't understand is how to put the text on top of the image that is in the picturebox, can anyone tell me how to do that? Here's the code
[Code]...
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Jul 8, 2011
The images on my e-commerce website are watermarked with an aspx script, therefore when you are browsing products, if you want to save the image it saves it as aspx rather than jpg or png. The thing is I need to give urls of jpg for a website that advertises products. There are more than 10,000 products so I can't save all of them manually, so I made a page with jquery that get's the image part of the product display page. What this page returns is this:
<div id="result"><div id="loadpic" style="width: 160px;">
<img border="0" src="http://11.11.11.11/img/picsel.aspx?code=IPHONE-32GB-4">
</div></div>
And the output is only an image. How can I return this image not as an aspx page but as a jpg or png? Since there's a script for watermarking the image and making it aspx, shouldn't there be a reverse function?
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Sep 4, 2010
I'm making a front end to dvdauthor.I have a picturebox which holds the menu background. In order to draw a textbutton on the background image I store the image in a hidden picturebox. So the text doesn't get drawn to the visible background.
Dim ctl As Control
For Each c As Control In pbMenu1.Controls
If c.GetType() Is GetType(TextBtn) Then[code]...
This works the first time. But if I hit save again it writes the text to the background image on pbMenu1.
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Apr 17, 2009
I am trying to save a file as a jpeg. So far the save dialog box opens and it seems to save but I can't open the saved file to see it.
[Code]...
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May 4, 2012
I'm trying to pass an image showing to the user a countdown. For this, I'm using a separate thread where I'm checking when the countdown timer should be started, and when so, I draw an image for every 6 seconds passed.
What's annoying is when I pass the drawn image to the UI, the quality of the image is changed and it looks bad to the user.
This is my little script that handles the drawings:
Try
remainingTime = (#12:04:00 AM# - (DateTime.Now - local_DateTimeclick)).ToString("HH:mm:ss")
remainingTimeInSeconds = Convert.ToDateTime(remainingTime).Minute * 60 +
[Code]....
Also tried with changing the properties of g, but there was no positive effect.
what can i do to make this properly work without changing the quality of the returned image?
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Jan 10, 2009
I've developed an application that acquires images from my Logitech QuickCam Pro 9000 using WIA. The problem is that I cannot figure out how to adjust the quality of the image taken by the camera. The camera has a 2MP lense, but the program will only acquire a picture of 320x240 pixels, which is the lowest resolution the camera has. How do I tell the camera to take a picture at one of it's other resolutions? IE: 640x480, 960x720, 1.3MP, or 2MP?
[Code].....
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Nov 17, 2009
I got this code from this forum, it works perfectly but I have a problem where when you resize the images, the quality of the image becomes not as good, is there a way to keep it in the same quality as it is when resizing?[code]....
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Sep 16, 2010
I had this question before "Resize image on the fly make the image lose quality online but locally works nice".And what i got now is that it's not a problem of local or online, i ran this resize on the server itself "dedicated server", and i got the same bad quality image, so the problem is in the IIS configurations.What in iis can make this bad quality image happen?
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Aug 20, 2010
I try to add text strings to an image but keep the metadata of the original image. The problem is How can I save ImgMetaData (from the original image) to the new image?
Here are the codes:
Public ImgMetaData As BitmapMetadata
Public myImageCodecInfo As ImageCodecInfo
Public myEncoder As Encoder
[Code]....
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Mar 1, 2010
I'm using below code 2 add image into a picturebox during the run time. i could add image but when i clicked the picture to make it become smaller, the picture quality is blur which not as the initial picture.
[Code]...
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Mar 26, 2010
I'm using iTextSharp to print a PDF document. Everything goes ok until I have to print the company logo in it. First I noticed that the logo had poor quality, but after testing with several images, I realize that was the iTextSharp rendering it poorly.The test I did to say this was to print the PDF using my code and then edit the document with Acrobat 8.0 and I drew an image. Then printed the two documents and saw the noticeable difference.My question is that if anyone know if this can be due to a scaling problem where I'm failing to tell iTextSharp how it must render the image or is an iTextSharp limitation.
[Code]...
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Mar 19, 2010
The Vb.Net application creates a bitmap from scratch and either converts to a tiff or sends it to a printer. In both cases, the quality of the image (in this case the font) is not good at all. The sample code listed below creates the graphics object that I use to write to the image.
Dim gr2 As Graphics = Graphics.FromImage(New Bitmap(800, 1000), Imaging.PixelFormat.Format32bppPArgb))
[code]......
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Mar 16, 2009
how i can convert gif image to jpeg image using vb?
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Feb 25, 2011
I have a signature box that does not allow me to save in jpeg format.I am using code:
'SigBoxCustSign.Save("C:Test2.bmp", SigBoxLib.SigBoxFileFormat.BMP)
Dim img As New Bitmap("C:Test2.bmp")
'img.Save("C:Test2.jpg", ImageFormat.Jpeg)
[code]....
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Oct 28, 2009
I'm using the below code to capture desktop screenshot, it is working but doest encode the screenshot result in real jpeg, I came to know that from the huge size of the saved jpeg file around 5MB!!!
Dim ScreenSize As Size = New Size(My.Computer.Screen.Bounds.Width, My.Computer.Screen.Bounds.Height)
Dim screenGrab As New Bitmap(My.Computer.Screen.Bounds.Width,
[code].....
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Jun 23, 2010
I have an owner-drawn control where performance is an issue during quick repaints such as object drags, resizing and painting the selector square. i have noticed that several other apps, including Picasa, will temporarily draw a reduced-quality image during fast repaint scenarios and then update the image with a higher-quality version when the UI "settles down."
How should I (can I?) produce a lower-quality image to paint when many quick redraws are taking place? Are there other strategies similar to this i can employ to increase performance (or fake increased performance.) [code]...
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Jun 15, 2009
I created a paint type program for signatures, and now I would like to save my canvas as either a jpeg, bitmap, or gif file, but I am unsure how to go about this. Here is my code,[CODE...]
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Jul 28, 2009
I've plot a histogram in a picturebox called picHisto, but i'm having a problem in save it to jpeg or other format. When it saved, it appears to be a blank or white picture. The code below is the code i used for saving, thanks for the help.
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim img As New Bitmap(picHisto.Width, picHisto.Height)
Dim g As Graphics = Graphics.FromImage(img)
[code]....
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Feb 17, 2012
I need to get a jpeg image from file system, feed it to DrawImage method for resizing and then save the result to a varbinary(MAX) field in a SQL Server table. How can I do the conversion from file system to image (from DrawImage method) to the varbinary(MAX)
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Jan 6, 2011
I have created a form that enables the user to add details about a bicycle, the functionality of it is fine. I have thought about allowing the user to write a jpeg image that relates to the ike being added and then at a later date when they want to search for this bike the image is also read to the same form as the details of the bike on the search form.[URL]..
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Jan 13, 2012
Can any one share some code with me that would explain the process of storing a bitmap data in tiff wrapped JPEG format.
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Apr 12, 2009
I am trying to create a wpf program that allows the user to create custom shapes or pick premade shapes and that after making their selection, a canvas shows their shapes randomly sized, positioned, colored and copied in multiples. I am hoping that on click, the program will put its output on a time interval and that the user can click stop when they are satisfied with how everything looks. My issue is, I would like to also give the user an option to save their created artwork as a jpeg file. Also if I wanted to link this file to a web browser what will I have to do?
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