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Seraphim Teterin
Seraphim Teterin

Pout.tif: A Low Contrast TIFF Image for MATLAB Demos



  • at3_1m4_01.tif, biological cells, frame 1;

  • at3_1m4_02.tif, biological cells, frame 2;

  • at3_1m4_03.tif, biological cells, frame 3;

  • at3_1m4_04.tif, biological cells, frame 4;

  • at3_1m4_05.tif, biological cells, frame 5;

  • at3_1m4_06.tif, biological cells, frame 6;

  • at3_1m4_07.tif, biological cells, frame 7;

  • at3_1m4_08.tif, biological cells, frame 8;

  • at3_1m4_09.tif, biological cells, frame 9;

  • at3_1m4_10.tif, biological cells, frame 10;

  • atlanta.tif, a high resolution black/white image of the nighttime light around the Atlanta urban area.

  • atlanta.png, a PNG version.

  • autumn.tif, a scene of trees in autumn;

  • autumn.png, a PNG version.

  • bali.tif, mountain rice fields in Bali;

  • bali.png, a PNG version.

  • balloons.tif, a couple with balloons;

  • balloons.png, a PNG version.

  • board.tif, a printed circuit board;

  • board.png, a PNG version.

  • body1.tif;

  • body1.png, a PNG version.

  • body2.tif;

  • body2.png, a PNG version.

  • body3.tif;

  • body3.png, a PNG version.

  • brain.tif, an image of the brain;

  • brain.png, a PNG version.

  • brain_398.tif, a still from an animation about brain cells;

  • brain_398.png, a PNG version.

  • brain_492.tif, a still from an animation about brain cells;

  • brain_492.png, a PNG version.

  • brain_508.tif, a still from an animation about brain cells;

  • brain_508.png, a PNG version.

  • brain_604.tif, a still from an animation about brain cells;

  • brain_604.png, a PNG version.

  • cameraman.tif, a man taking a picture (grayscale).

  • cameraman.png, a PNG version.

  • canoe.tif, an image of a couple in a canoe (RGB).

  • canoe.png, a PNG version.

  • casablanca.tif, a still from the movie "Casablanca";

  • casablanca.png, a PNG version;

  • cell.tif, an image of biological cells (grayscale).

  • cell.png, a PNG version.

  • chicago.tif, a high resolution black/white image of the nighttime light around the Chicago urban area.

  • chicago.png, a PNG version.

  • circuit.tif, a closeup of a printed circuit (gray scale).

  • circuit.png, a PNG version.

  • circuit_bw.tif, a closeup of a printed circuit (black and white).

  • circuit_bw.png, a PNG version.

  • columns.tif, a woman stands by columns (RGB);

  • columns.png, a PNG version.

  • dallas.tif, a high resolution black/white image of the nighttime light around the Dallas urban area.

  • dallas.png, a PNG version.

  • eight.tif, four quarters;

  • eight.png, a PNG version.

  • f14.tif, an F14 fighter;

  • f14.png a PNG version;

  • flagler.tif, a statue of Henry Flagler, at Flagler University.

  • flagler.png a PNG version;

  • foliage.tif;

  • foliage.png a PNG version;

  • football_seal.tif, a logo;

  • football_seal.png a PNG version;

  • forest.tif;

  • forest.png a PNG version;

  • galaxy.tif an astronomical image of a galaxy;

  • galaxy.png a PNG version;

  • hands.tif;

  • hands.png a PNG version;

  • handsmat.tif;

  • handsmat.png a PNG version;

  • kids.tif a formal pose of two children;

  • kids.png a PNG version;

  • leaves.tif, some autumn leaves in a puddle;

  • leaves.png a PNG version;

  • m83.tif an astronomical image of galaxy M83;

  • m83.png a PNG version;

  • marcie.tif;

  • marcie.png a PNG version;

  • memphis.tif, a high resolution black/white image of the nighttime light around the Memphis urban area.

  • memphis.png, a PNG version.

  • moon.tif, an image of the moon;

  • moon.png a PNG version;

  • mountain.tif;

  • mountain.png a PNG version;

  • mri.tif 27 images of successive MRI slices.

  • mri_00.png a PNG version of image 0;

  • mri_01.png a PNG version of image 1;

  • mri_02.png a PNG version of image 2;

  • mri_03.png a PNG version of image 3;

  • mri_04.png a PNG version of image 4;

  • mri_05.png a PNG version of image 5;

  • mri_06.png a PNG version of image 6;

  • mri_07.png a PNG version of image 7;

  • mri_08.png a PNG version of image 8;

  • mri_09.png a PNG version of image 9;

  • mri_10.png a PNG version of image 10;

  • mri_11.png a PNG version of image 11;

  • mri_12.png a PNG version of image 12;

  • mri_13.png a PNG version of image 13;

  • mri_14.png a PNG version of image 14;

  • mri_15.png a PNG version of image 15;

  • mri_16.png a PNG version of image 16;

  • mri_17.png a PNG version of image 17;

  • mri_18.png a PNG version of image 18;

  • mri_19.png a PNG version of image 19;

  • mri_20.png a PNG version of image 20;

  • mri_21.png a PNG version of image 21;

  • mri_22.png a PNG version of image 22;

  • mri_23.png a PNG version of image 23;

  • mri_24.png a PNG version of image 24;

  • mri_25.png a PNG version of image 25;

  • mri_26.png a PNG version of image 26;

  • philadelphia.tif, a high resolution black/white image of the nighttime light around the Philadelphia urban area.

  • philadelphia.png, a PNG version.

  • pout.tif, a pouting child.

  • pout.png a PNG version;

  • roi_14.tif, a 507 wide by 505 high image of an MRI, the 14th in a sequence.

  • roi_14.png, a PNG version.

  • sanfrancisco.tif, a high resolution black/white image of the nighttime light around the San Francisco urban area.

  • sanfrancisco.png, a PNG version.

  • saturn.tif;

  • saturn.png a PNG version;

  • sc_logo.tif, a logo for the Department of Scientific Computing at Florida State University;

  • sc_logo.png a PNG version;

  • screws.tif;

  • screws.png a PNG version;

  • scs_logo.tif, the logo for the School of Computational Science at Florida State University (since renamed the Department of Scientific Computing).

  • scs_logo.png a PNG version;

  • shadow.tif;

  • shadow.png a PNG version;

  • spine.tif, a spine;

  • spine.png a PNG version;

  • surf.tif;

  • surf.png a PNG version;

  • tire.tif, a car tire;

  • tire.png a PNG version;

  • totem.tif, a totem pole;

  • totem.png a PNG version;

  • underwater_bmx.tif, a slightly blurred image of a bicycle rider on a diving board.

  • underwater_bmx.png a PNG version;

  • venus1.tif;

  • venus1.png a PNG version;

  • venus2.tif;

  • venus2.png a PNG version;

  • x31_f18.tif, two military jets in flight;

  • x31_f18.png a PNG version;




pout.tif download


Download File: https://www.google.com/url?q=https%3A%2F%2Furlin.us%2F2uoq0A&sa=D&sntz=1&usg=AOvVaw3g3kuHHm_i30UV86e7WKJa



Read an image into the workspace, using the imread command. The example reads one of the sample images included with the toolbox, an image of a young girl in a file named pout.tif , and stores it in an array named I . imread infers from the file that the graphics file format is Tagged Image File Format (TIFF).


View the distribution of image pixel intensities. The image pout.tif is a somewhat low contrast image. To see the distribution of intensities in the image, create a histogram by calling the imhist function. (Precede the call to imhist with the figure command so that the histogram does not overwrite the display of the image I in the current figure window.) Notice how the histogram indicates that the intensity range of the image is rather narrow. The range does not cover the potential range of [0, 255], and is missing the high and low values that would result in good contrast.


TIFF files can store multiple independent images. The function imread has a syntax for specifying which image you want. The file mri.tif (download link) contains 27 images. Here is how you would read the 1st, 6th, and 11th images in the file.


Notice that imadjust had little effect on the image of the tire, but it caused a drastic change in the case of pout. Plotting the histograms of pout.tif and tire.tif reveals that most of the pixels in the first image are concentrated in the center of the histogram, while in the case of tire.tif, the values are already spread out between the minimum of 0 and maximum of 255 thus preventing imadjust from being effective in adjusting the contrast of the image.


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This example illustrates how to retrieve phase and amplitude from ahologram stored as a tif file. The experimental hologram is aU.S. Air Force test target downloaded from theSubmersible Holographic Astrobiology Microscope withUltraresolution (SHAMU)project [BBL+17]. The values for pixel resolution,wavelength, and reconstruction distance are taken from thecorresponding Python example.


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