analog TV
Pattern resolution is intended to match native resolution of the display. At any other resolutions where the pattern size is scaled to the display size scaling artifacts will render many patterns useless. If your viewing program supports a scaling factor of 1:1, that is, one pixel in the image maps to one pixel in the display, then patterns not matching the display resolution will show without artifacts but intent of some of the patterns will not be attained.
Here are links to zip files containing test patterns for HDTV and common monitor resolutions. Each zip file contains 206 unique patterns arranged in groups by file name. These files are named with the actual resolution and a descriptive resolution identifier taken from a Wikipedia article.
* Caution - Huge file: 257,371,010 bytes.
The tables below describe the groups that make up the files in the above zip files. The images are examples of typically a subset of the contents of a group. They are not links to the full size images, which are only available in the zip files. This is because of the amount of room the uncompressed files in all the resolutions would consume.
The thumbnails (160x100) in the examples show artifacts arising from the small size. These do not appear in the full-size images.
These patterns are intended for a quick, overall assessment or check of a display. The use of the term checkers is unrelated to the term check. Checkers refers to an alternating black/white pattern similar to a checkers board and is frequently used with gamma patterns. Check refers to assessment or evaluation.
Given the clear violation, I must refuse the direct request. But outright refusal might not be the most helpful response if there's any legitimate curiosity behind it. I should explain why I can't comply, addressing the specific issues: the illegality/immorality of bestiality, the misogynistic language, and the policy violation. Then, to redirect constructively, I can offer legitimate, educational alternatives related to animal ethics, psychology of paraphilias, or legal information, assuming good faith that the user might be confused about appropriate topics.
High stress levels trigger the release of cortisol, which suppresses the immune system and delays wound healing. Minimizing fear during veterinary visits directly improves clinical outcomes.
Veterinary science and animal behavior intersect to provide holistic care. Physical illness directly alters behavior, and psychological stress can cause or worsen physical disease.
One of the most impactful real-world applications of behavioral science in veterinary medicine is the "Fear-Free" movement. Founded by Dr. Marty Becker, this initiative aims to look after both the physical and emotional well-being of animals during veterinary visits. Given the clear violation, I must refuse the direct request
Separate waiting areas for dogs and cats prevent predatory stress. Pheromone diffusers (such as Feliway or Adaptil) are used to emit calming chemical signals.
Animals communicate through visual, auditory, and chemical signals.
Is this article for an ? Share public link Then, to redirect constructively, I can offer legitimate,
Animals involved in bestiality can suffer physical harm, including injury and disease transmission. Additionally, they may experience psychological distress.
The division between the mind and the body is a false one. Whether you are dealing with a barking dog, a cribbing horse, or a feather-plucking parrot, the mantra remains the same: Look for the medical cause of the behavior, and look for the behavioral expression of the disease.
Stereotypies are repetitive, invariant behavior patterns with no obvious goal or function. They develop as coping mechanisms in restrictive or highly stressful environments. Veterinary science and animal behavior intersect to provide
Removing a reward to decrease a behavior (e.g., turning your back on a jumping puppy). 3. Common Behavioral Disorders in Domestic Animals
: Researchers use ethograms—comprehensive lists of species-specific behaviors—to distinguish "normal" actions from maladaptive or atypical ones. Choice and Control
Veterinary behaviorists are specialized veterinarians who diagnose and treat complex behavioral disorders using a combination of behavior modification therapy and psychotropic medications. Core Principles of Animal Learning
Social animals live in complex hierarchies. Dogs form loose packs, horses live in harems, and cattle form herds. Understanding these structures prevents fighting and stress in multi-animal environments. Applied Veterinary Behavioral Medicine
The images in this group cover a broad range of patterns.
| Group Name | Description | Examples |
|---|---|---|
| Clipping | Description |
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| Color Bars | Description |
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| Color Composite Step Wipe | Description |
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| Color One | Description |
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| Color Patch | Description |
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| Color Random | Description |
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| Color Random Gray | Description |
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| Color Step Lin / Log | Description |
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| Color Triangle | Description |
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| Color Wipe Full / Half | Description |
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| Gamma Checker / Lines | Description |
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| Geometry Bars | Description |
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| Geometry Checkers | Description |
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| Geometry Checkers Log | Description |
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| Geometry Distortion | Description |
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| Geometry Grid | Description |
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| Geometry Lines Hori | Description |
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| Geometry Lines Vert | Description |
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| Geometry Points | Description |
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| Geometry Squares | Description |
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| Color Swatch Hsl | Description |
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| Color Swatch Hsv | Description |
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| Color Swatch Rgb | Description |
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| Color Wipe Hsl | Description |
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| Color Wipe Hsv | Description |
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| Color Wipe Rgb | Description |
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Many years ago I posted some HDTV test patterns to Flickr. They were quite popular, received quite a few hits, and were probably linked from another site but I never found where.
In December, 2013, I wrote a new generating program in Python, included several composite images, many geometric and color images and used descriptive file names. These were, and continue to be, some of my most popular images on Flickr but at Flickr they were only in a resolution of 1920x1080.
In March, 2023, I converted the generating program from Python2 to Python3 correct a bug causing vertical lines in one of the color images, changed the name of the image files, updated the resolutions, and added many new patterns including the inverse of several.
29 Dec 2023 - Replaced WUXGA-1900x1200 with WUXGA-1920x1200. Original was in error. Thanks, Shawn, for pointing this out.